20187741480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1\times {\mathrm{9293}}^1$

素因数の和:9771

約数の個数: 128

約数和(自身を含む): 62125557120

約数和(自身を除く): 41937815640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 421, 430, 516, 645, 842, 860, 1032, 1263, 1290, 1684, 1720, 2105, 2526, 2580, 3368, 4210, 5052, 5160, 6315, 8420, 9293, 10104, 12630, 16840, 18103, 18586, 25260, 27879, 36206, 37172, 46465, 50520, 54309, 55758, 72412, 74344, 90515, 92930, 108618, 111516, 139395, 144824, 181030, 185860, 217236, 223032, 271545, 278790, 362060, 371720, 399599, 434472, 543090, 557580, 724120, 799198, 1086180, 1115160, 1198797, 1598396, 1997995, 2172360, 2397594, 3196792, 3912353, 3995990, 4795188, 5993985, 7824706, 7991980, 9590376, 11737059, 11987970, 15649412, 15983960, 19561765, 23474118, 23975940, 31298824, 39123530, 46948236, 47951880, 58685295, 78247060, 93896472, 117370590, 156494120, 168231179, 234741180, 336462358, 469482360, 504693537, 672924716, 841155895, 1009387074, 1345849432, 1682311790, 2018774148, 2523467685, 3364623580, 4037548296, 5046935370, 6729247160, 10093870740, 20187741480]

約数ペア:

[(1, 20187741480), (2, 10093870740), (3, 6729247160), (4, 5046935370), (5, 4037548296), (6, 3364623580), (8, 2523467685), (10, 2018774148), (12, 1682311790), (15, 1345849432), (20, 1009387074), (24, 841155895), (30, 672924716), (40, 504693537), (43, 469482360), (60, 336462358), (86, 234741180), (120, 168231179), (129, 156494120), (172, 117370590), (215, 93896472), (258, 78247060), (344, 58685295), (421, 47951880), (430, 46948236), (516, 39123530), (645, 31298824), (842, 23975940), (860, 23474118), (1032, 19561765), (1263, 15983960), (1290, 15649412), (1684, 11987970), (1720, 11737059), (2105, 9590376), (2526, 7991980), (2580, 7824706), (3368, 5993985), (4210, 4795188), (5052, 3995990), (5160, 3912353), (6315, 3196792), (8420, 2397594), (9293, 2172360), (10104, 1997995), (12630, 1598396), (16840, 1198797), (18103, 1115160), (18586, 1086180), (25260, 799198), (27879, 724120), (36206, 557580), (37172, 543090), (46465, 434472), (50520, 399599), (54309, 371720), (55758, 362060), (72412, 278790), (74344, 271545), (90515, 223032), (92930, 217236), (108618, 185860), (111516, 181030), (139395, 144824)]