20526772240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{1091}}^1$

素因数の和:1425

約数の個数: 160

約数和(自身を含む): 52321651200

約数和(自身を除く): 31794878960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 229, 260, 316, 395, 458, 520, 632, 790, 916, 1027, 1040, 1091, 1145, 1264, 1580, 1832, 2054, 2182, 2290, 2977, 3160, 3664, 4108, 4364, 4580, 5135, 5455, 5954, 6320, 8216, 8728, 9160, 10270, 10910, 11908, 14183, 14885, 16432, 17456, 18091, 18320, 20540, 21820, 23816, 28366, 29770, 36182, 41080, 43640, 47632, 56732, 59540, 70915, 72364, 82160, 86189, 87280, 90455, 113464, 119080, 141830, 144728, 172378, 180910, 226928, 235183, 238160, 249839, 283660, 289456, 344756, 361820, 430945, 470366, 499678, 567320, 689512, 723640, 861890, 940732, 999356, 1120457, 1134640, 1175915, 1249195, 1379024, 1447280, 1723780, 1881464, 1998712, 2240914, 2351830, 2498390, 3247907, 3447560, 3762928, 3997424, 4481828, 4703660, 4996780, 5602285, 6495814, 6895120, 8963656, 9407320, 9993560, 11204570, 12991628, 16239535, 17927312, 18814640, 19737281, 19987120, 22409140, 25983256, 32479070, 39474562, 44818280, 51966512, 64958140, 78949124, 89636560, 98686405, 129916280, 157898248, 197372810, 256584653, 259832560, 315796496, 394745620, 513169306, 789491240, 1026338612, 1282923265, 1578982480, 2052677224, 2565846530, 4105354448, 5131693060, 10263386120, 20526772240]

約数ペア:

[(1, 20526772240), (2, 10263386120), (4, 5131693060), (5, 4105354448), (8, 2565846530), (10, 2052677224), (13, 1578982480), (16, 1282923265), (20, 1026338612), (26, 789491240), (40, 513169306), (52, 394745620), (65, 315796496), (79, 259832560), (80, 256584653), (104, 197372810), (130, 157898248), (158, 129916280), (208, 98686405), (229, 89636560), (260, 78949124), (316, 64958140), (395, 51966512), (458, 44818280), (520, 39474562), (632, 32479070), (790, 25983256), (916, 22409140), (1027, 19987120), (1040, 19737281), (1091, 18814640), (1145, 17927312), (1264, 16239535), (1580, 12991628), (1832, 11204570), (2054, 9993560), (2182, 9407320), (2290, 8963656), (2977, 6895120), (3160, 6495814), (3664, 5602285), (4108, 4996780), (4364, 4703660), (4580, 4481828), (5135, 3997424), (5455, 3762928), (5954, 3447560), (6320, 3247907), (8216, 2498390), (8728, 2351830), (9160, 2240914), (10270, 1998712), (10910, 1881464), (11908, 1723780), (14183, 1447280), (14885, 1379024), (16432, 1249195), (17456, 1175915), (18091, 1134640), (18320, 1120457), (20540, 999356), (21820, 940732), (23816, 861890), (28366, 723640), (29770, 689512), (36182, 567320), (41080, 499678), (43640, 470366), (47632, 430945), (56732, 361820), (59540, 344756), (70915, 289456), (72364, 283660), (82160, 249839), (86189, 238160), (87280, 235183), (90455, 226928), (113464, 180910), (119080, 172378), (141830, 144728)]