3977996920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{719}}^1\times {\mathrm{881}}^1$

素因数の和:1768

約数の個数: 64

約数和(自身を含む): 9030268800

約数和(自身を除く): 5052271880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 719, 785, 881, 1256, 1438, 1570, 1762, 2876, 3140, 3524, 3595, 4405, 5752, 6280, 7048, 7190, 8810, 14380, 17620, 28760, 35240, 112883, 138317, 225766, 276634, 451532, 553268, 564415, 633439, 691585, 903064, 1106536, 1128830, 1266878, 1383170, 2257660, 2533756, 2766340, 3167195, 4515320, 5067512, 5532680, 6334390, 12668780, 25337560, 99449923, 198899846, 397799692, 497249615, 795599384, 994499230, 1988998460, 3977996920]

約数ペア:

[(1, 3977996920), (2, 1988998460), (4, 994499230), (5, 795599384), (8, 497249615), (10, 397799692), (20, 198899846), (40, 99449923), (157, 25337560), (314, 12668780), (628, 6334390), (719, 5532680), (785, 5067512), (881, 4515320), (1256, 3167195), (1438, 2766340), (1570, 2533756), (1762, 2257660), (2876, 1383170), (3140, 1266878), (3524, 1128830), (3595, 1106536), (4405, 903064), (5752, 691585), (6280, 633439), (7048, 564415), (7190, 553268), (8810, 451532), (14380, 276634), (17620, 225766), (28760, 138317), (35240, 112883)]