19620720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:272

約数の個数: 240

約数和(自身を含む): 80084160

約数和(自身を除く): 60463440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 48, 51, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 102, 105, 112, 119, 120, 126, 136, 140, 144, 153, 168, 170, 180, 204, 210, 229, 238, 240, 252, 255, 272, 280, 306, 315, 336, 340, 357, 360, 408, 420, 458, 476, 504, 510, 560, 595, 612, 630, 680, 687, 714, 720, 765, 816, 840, 916, 952, 1008, 1020, 1071, 1145, 1190, 1224, 1260, 1360, 1374, 1428, 1530, 1603, 1680, 1785, 1832, 1904, 2040, 2061, 2142, 2290, 2380, 2448, 2520, 2748, 2856, 3060, 3206, 3435, 3570, 3664, 3893, 4080, 4122, 4284, 4580, 4760, 4809, 5040, 5355, 5496, 5712, 6120, 6412, 6870, 7140, 7786, 8015, 8244, 8568, 9160, 9520, 9618, 10305, 10710, 10992, 11679, 12240, 12824, 13740, 14280, 14427, 15572, 16030, 16488, 17136, 18320, 19236, 19465, 20610, 21420, 23358, 24045, 25648, 27251, 27480, 28560, 28854, 31144, 32060, 32976, 35037, 38472, 38930, 41220, 42840, 46716, 48090, 54502, 54960, 57708, 58395, 62288, 64120, 70074, 72135, 76944, 77860, 81753, 82440, 85680, 93432, 96180, 109004, 115416, 116790, 128240, 136255, 140148, 144270, 155720, 163506, 164880, 175185, 186864, 192360, 218008, 230832, 233580, 245259, 272510, 280296, 288540, 311440, 327012, 350370, 384720, 408765, 436016, 467160, 490518, 545020, 560592, 577080, 654024, 700740, 817530, 934320, 981036, 1090040, 1154160, 1226295, 1308048, 1401480, 1635060, 1962072, 2180080, 2452590, 2802960, 3270120, 3924144, 4905180, 6540240, 9810360, 19620720]

約数ペア:

[(1, 19620720), (2, 9810360), (3, 6540240), (4, 4905180), (5, 3924144), (6, 3270120), (7, 2802960), (8, 2452590), (9, 2180080), (10, 1962072), (12, 1635060), (14, 1401480), (15, 1308048), (16, 1226295), (17, 1154160), (18, 1090040), (20, 981036), (21, 934320), (24, 817530), (28, 700740), (30, 654024), (34, 577080), (35, 560592), (36, 545020), (40, 490518), (42, 467160), (45, 436016), (48, 408765), (51, 384720), (56, 350370), (60, 327012), (63, 311440), (68, 288540), (70, 280296), (72, 272510), (80, 245259), (84, 233580), (85, 230832), (90, 218008), (102, 192360), (105, 186864), (112, 175185), (119, 164880), (120, 163506), (126, 155720), (136, 144270), (140, 140148), (144, 136255), (153, 128240), (168, 116790), (170, 115416), (180, 109004), (204, 96180), (210, 93432), (229, 85680), (238, 82440), (240, 81753), (252, 77860), (255, 76944), (272, 72135), (280, 70074), (306, 64120), (315, 62288), (336, 58395), (340, 57708), (357, 54960), (360, 54502), (408, 48090), (420, 46716), (458, 42840), (476, 41220), (504, 38930), (510, 38472), (560, 35037), (595, 32976), (612, 32060), (630, 31144), (680, 28854), (687, 28560), (714, 27480), (720, 27251), (765, 25648), (816, 24045), (840, 23358), (916, 21420), (952, 20610), (1008, 19465), (1020, 19236), (1071, 18320), (1145, 17136), (1190, 16488), (1224, 16030), (1260, 15572), (1360, 14427), (1374, 14280), (1428, 13740), (1530, 12824), (1603, 12240), (1680, 11679), (1785, 10992), (1832, 10710), (1904, 10305), (2040, 9618), (2061, 9520), (2142, 9160), (2290, 8568), (2380, 8244), (2448, 8015), (2520, 7786), (2748, 7140), (2856, 6870), (3060, 6412), (3206, 6120), (3435, 5712), (3570, 5496), (3664, 5355), (3893, 5040), (4080, 4809), (4122, 4760), (4284, 4580)]