20391840

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^2$

素因数の和:69

約数の個数: 324

約数和(自身を含む): 85990086

約数和(自身を除く): 65598246

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 32, 34, 35, 36, 40, 42, 45, 48, 49, 51, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 96, 98, 102, 105, 112, 119, 120, 126, 136, 140, 144, 147, 153, 160, 168, 170, 180, 196, 204, 210, 224, 238, 240, 245, 252, 255, 272, 280, 288, 289, 294, 306, 315, 336, 340, 357, 360, 392, 408, 420, 441, 476, 480, 490, 504, 510, 544, 560, 578, 588, 595, 612, 630, 672, 680, 714, 720, 735, 765, 784, 816, 833, 840, 867, 882, 952, 980, 1008, 1020, 1071, 1120, 1156, 1176, 1190, 1224, 1260, 1360, 1428, 1440, 1445, 1470, 1530, 1568, 1632, 1666, 1680, 1734, 1764, 1785, 1904, 1960, 2016, 2023, 2040, 2142, 2205, 2312, 2352, 2380, 2448, 2499, 2520, 2601, 2720, 2856, 2890, 2940, 3060, 3332, 3360, 3468, 3528, 3570, 3808, 3920, 4046, 4080, 4165, 4284, 4335, 4410, 4624, 4704, 4760, 4896, 4998, 5040, 5202, 5355, 5712, 5780, 5880, 6069, 6120, 6664, 6936, 7056, 7140, 7497, 7840, 8092, 8160, 8330, 8568, 8670, 8820, 9248, 9520, 9996, 10080, 10115, 10404, 10710, 11424, 11560, 11760, 12138, 12240, 12495, 13005, 13328, 13872, 14112, 14161, 14280, 14994, 16184, 16660, 17136, 17340, 17640, 18207, 19040, 19992, 20230, 20808, 21420, 23120, 23520, 24276, 24480, 24990, 26010, 26656, 27744, 28322, 28560, 29988, 30345, 32368, 33320, 34272, 34680, 35280, 36414, 37485, 39984, 40460, 41616, 42483, 42840, 46240, 48552, 49980, 52020, 56644, 57120, 59976, 60690, 64736, 66640, 69360, 70560, 70805, 72828, 74970, 79968, 80920, 83232, 84966, 85680, 91035, 97104, 99960, 104040, 113288, 119952, 121380, 127449, 133280, 138720, 141610, 145656, 149940, 161840, 169932, 171360, 182070, 194208, 199920, 208080, 212415, 226576, 239904, 242760, 254898, 283220, 291312, 299880, 323680, 339864, 364140, 399840, 416160, 424830, 453152, 485520, 509796, 566440, 582624, 599760, 637245, 679728, 728280, 849660, 971040, 1019592, 1132880, 1199520, 1274490, 1359456, 1456560, 1699320, 2039184, 2265760, 2548980, 2913120, 3398640, 4078368, 5097960, 6797280, 10195920, 20391840]

約数ペア:

[(1, 20391840), (2, 10195920), (3, 6797280), (4, 5097960), (5, 4078368), (6, 3398640), (7, 2913120), (8, 2548980), (9, 2265760), (10, 2039184), (12, 1699320), (14, 1456560), (15, 1359456), (16, 1274490), (17, 1199520), (18, 1132880), (20, 1019592), (21, 971040), (24, 849660), (28, 728280), (30, 679728), (32, 637245), (34, 599760), (35, 582624), (36, 566440), (40, 509796), (42, 485520), (45, 453152), (48, 424830), (49, 416160), (51, 399840), (56, 364140), (60, 339864), (63, 323680), (68, 299880), (70, 291312), (72, 283220), (80, 254898), (84, 242760), (85, 239904), (90, 226576), (96, 212415), (98, 208080), (102, 199920), (105, 194208), (112, 182070), (119, 171360), (120, 169932), (126, 161840), (136, 149940), (140, 145656), (144, 141610), (147, 138720), (153, 133280), (160, 127449), (168, 121380), (170, 119952), (180, 113288), (196, 104040), (204, 99960), (210, 97104), (224, 91035), (238, 85680), (240, 84966), (245, 83232), (252, 80920), (255, 79968), (272, 74970), (280, 72828), (288, 70805), (289, 70560), (294, 69360), (306, 66640), (315, 64736), (336, 60690), (340, 59976), (357, 57120), (360, 56644), (392, 52020), (408, 49980), (420, 48552), (441, 46240), (476, 42840), (480, 42483), (490, 41616), (504, 40460), (510, 39984), (544, 37485), (560, 36414), (578, 35280), (588, 34680), (595, 34272), (612, 33320), (630, 32368), (672, 30345), (680, 29988), (714, 28560), (720, 28322), (735, 27744), (765, 26656), (784, 26010), (816, 24990), (833, 24480), (840, 24276), (867, 23520), (882, 23120), (952, 21420), (980, 20808), (1008, 20230), (1020, 19992), (1071, 19040), (1120, 18207), (1156, 17640), (1176, 17340), (1190, 17136), (1224, 16660), (1260, 16184), (1360, 14994), (1428, 14280), (1440, 14161), (1445, 14112), (1470, 13872), (1530, 13328), (1568, 13005), (1632, 12495), (1666, 12240), (1680, 12138), (1734, 11760), (1764, 11560), (1785, 11424), (1904, 10710), (1960, 10404), (2016, 10115), (2023, 10080), (2040, 9996), (2142, 9520), (2205, 9248), (2312, 8820), (2352, 8670), (2380, 8568), (2448, 8330), (2499, 8160), (2520, 8092), (2601, 7840), (2720, 7497), (2856, 7140), (2890, 7056), (2940, 6936), (3060, 6664), (3332, 6120), (3360, 6069), (3468, 5880), (3528, 5780), (3570, 5712), (3808, 5355), (3920, 5202), (4046, 5040), (4080, 4998), (4165, 4896), (4284, 4760), (4335, 4704), (4410, 4624)]