20210744680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2539}}^1\times {\mathrm{28429}}^1$

素因数の和:30986

約数の個数: 64

約数和(自身を含む): 51992784000

約数和(自身を除く): 31782039320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2539, 5078, 10156, 12695, 17773, 20312, 25390, 28429, 35546, 50780, 56858, 71092, 88865, 101560, 113716, 142145, 142184, 177730, 199003, 227432, 284290, 355460, 398006, 568580, 710920, 796012, 995015, 1137160, 1592024, 1990030, 3980060, 7960120, 72181231, 144362462, 288724924, 360906155, 505268617, 577449848, 721812310, 1010537234, 1443624620, 2021074468, 2526343085, 2887249240, 4042148936, 5052686170, 10105372340, 20210744680]

約数ペア:

[(1, 20210744680), (2, 10105372340), (4, 5052686170), (5, 4042148936), (7, 2887249240), (8, 2526343085), (10, 2021074468), (14, 1443624620), (20, 1010537234), (28, 721812310), (35, 577449848), (40, 505268617), (56, 360906155), (70, 288724924), (140, 144362462), (280, 72181231), (2539, 7960120), (5078, 3980060), (10156, 1990030), (12695, 1592024), (17773, 1137160), (20312, 995015), (25390, 796012), (28429, 710920), (35546, 568580), (50780, 398006), (56858, 355460), (71092, 284290), (88865, 227432), (101560, 199003), (113716, 177730), (142145, 142184)]