1298996920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2498071}}^1$

素因数の和:2498095

約数の個数: 32

約数和(自身を含む): 3147570720

約数和(自身を除く): 1848573800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2498071, 4996142, 9992284, 12490355, 19984568, 24980710, 32474923, 49961420, 64949846, 99922840, 129899692, 162374615, 259799384, 324749230, 649498460, 1298996920]

約数ペア:

[(1, 1298996920), (2, 649498460), (4, 324749230), (5, 259799384), (8, 162374615), (10, 129899692), (13, 99922840), (20, 64949846), (26, 49961420), (40, 32474923), (52, 24980710), (65, 19984568), (104, 12490355), (130, 9992284), (260, 4996142), (520, 2498071)]