20409480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 288

約数和(自身を含む): 84029400

約数和(自身を除く): 63619920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 49, 52, 56, 60, 63, 65, 70, 72, 78, 84, 89, 90, 91, 98, 104, 105, 117, 120, 126, 130, 140, 147, 156, 168, 178, 180, 182, 195, 196, 210, 234, 245, 252, 260, 267, 273, 280, 294, 312, 315, 356, 360, 364, 390, 392, 420, 441, 445, 455, 468, 490, 504, 520, 534, 546, 585, 588, 623, 630, 637, 712, 728, 735, 780, 801, 819, 840, 882, 890, 910, 936, 980, 1068, 1092, 1157, 1170, 1176, 1246, 1260, 1274, 1335, 1365, 1470, 1560, 1602, 1638, 1764, 1780, 1820, 1869, 1911, 1960, 2136, 2184, 2205, 2314, 2340, 2492, 2520, 2548, 2670, 2730, 2940, 3115, 3185, 3204, 3276, 3471, 3528, 3560, 3640, 3738, 3822, 4005, 4095, 4361, 4410, 4628, 4680, 4984, 5096, 5340, 5460, 5607, 5733, 5785, 5880, 6230, 6370, 6408, 6552, 6942, 7476, 7644, 8010, 8099, 8190, 8722, 8820, 9256, 9345, 9555, 10413, 10680, 10920, 11214, 11466, 11570, 12460, 12740, 13083, 13884, 14952, 15288, 16020, 16198, 16380, 17355, 17444, 17640, 18690, 19110, 20826, 21805, 22428, 22932, 23140, 24297, 24920, 25480, 26166, 27768, 28035, 28665, 32040, 32396, 32760, 34710, 34888, 37380, 38220, 39249, 40495, 41652, 43610, 44856, 45864, 46280, 48594, 52065, 52332, 56070, 56693, 57330, 64792, 65415, 69420, 72891, 74760, 76440, 78498, 80990, 83304, 87220, 97188, 104130, 104664, 112140, 113386, 114660, 121485, 130830, 138840, 145782, 156996, 161980, 170079, 174440, 194376, 196245, 208260, 224280, 226772, 229320, 242970, 261660, 283465, 291564, 313992, 323960, 340158, 364455, 392490, 416520, 453544, 485940, 510237, 523320, 566930, 583128, 680316, 728910, 784980, 850395, 971880, 1020474, 1133860, 1360632, 1457820, 1569960, 1700790, 2040948, 2267720, 2551185, 2915640, 3401580, 4081896, 5102370, 6803160, 10204740, 20409480]

約数ペア:

[(1, 20409480), (2, 10204740), (3, 6803160), (4, 5102370), (5, 4081896), (6, 3401580), (7, 2915640), (8, 2551185), (9, 2267720), (10, 2040948), (12, 1700790), (13, 1569960), (14, 1457820), (15, 1360632), (18, 1133860), (20, 1020474), (21, 971880), (24, 850395), (26, 784980), (28, 728910), (30, 680316), (35, 583128), (36, 566930), (39, 523320), (40, 510237), (42, 485940), (45, 453544), (49, 416520), (52, 392490), (56, 364455), (60, 340158), (63, 323960), (65, 313992), (70, 291564), (72, 283465), (78, 261660), (84, 242970), (89, 229320), (90, 226772), (91, 224280), (98, 208260), (104, 196245), (105, 194376), (117, 174440), (120, 170079), (126, 161980), (130, 156996), (140, 145782), (147, 138840), (156, 130830), (168, 121485), (178, 114660), (180, 113386), (182, 112140), (195, 104664), (196, 104130), (210, 97188), (234, 87220), (245, 83304), (252, 80990), (260, 78498), (267, 76440), (273, 74760), (280, 72891), (294, 69420), (312, 65415), (315, 64792), (356, 57330), (360, 56693), (364, 56070), (390, 52332), (392, 52065), (420, 48594), (441, 46280), (445, 45864), (455, 44856), (468, 43610), (490, 41652), (504, 40495), (520, 39249), (534, 38220), (546, 37380), (585, 34888), (588, 34710), (623, 32760), (630, 32396), (637, 32040), (712, 28665), (728, 28035), (735, 27768), (780, 26166), (801, 25480), (819, 24920), (840, 24297), (882, 23140), (890, 22932), (910, 22428), (936, 21805), (980, 20826), (1068, 19110), (1092, 18690), (1157, 17640), (1170, 17444), (1176, 17355), (1246, 16380), (1260, 16198), (1274, 16020), (1335, 15288), (1365, 14952), (1470, 13884), (1560, 13083), (1602, 12740), (1638, 12460), (1764, 11570), (1780, 11466), (1820, 11214), (1869, 10920), (1911, 10680), (1960, 10413), (2136, 9555), (2184, 9345), (2205, 9256), (2314, 8820), (2340, 8722), (2492, 8190), (2520, 8099), (2548, 8010), (2670, 7644), (2730, 7476), (2940, 6942), (3115, 6552), (3185, 6408), (3204, 6370), (3276, 6230), (3471, 5880), (3528, 5785), (3560, 5733), (3640, 5607), (3738, 5460), (3822, 5340), (4005, 5096), (4095, 4984), (4361, 4680), (4410, 4628)]