8876920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 22065120

約数和(自身を除く): 13188200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 397, 430, 520, 559, 794, 860, 1118, 1588, 1720, 1985, 2236, 2795, 3176, 3970, 4472, 5161, 5590, 7940, 10322, 11180, 15880, 17071, 20644, 22360, 25805, 34142, 41288, 51610, 68284, 85355, 103220, 136568, 170710, 206440, 221923, 341420, 443846, 682840, 887692, 1109615, 1775384, 2219230, 4438460, 8876920]

約数ペア:

[(1, 8876920), (2, 4438460), (4, 2219230), (5, 1775384), (8, 1109615), (10, 887692), (13, 682840), (20, 443846), (26, 341420), (40, 221923), (43, 206440), (52, 170710), (65, 136568), (86, 103220), (104, 85355), (130, 68284), (172, 51610), (215, 41288), (260, 34142), (344, 25805), (397, 22360), (430, 20644), (520, 17071), (559, 15880), (794, 11180), (860, 10322), (1118, 7940), (1588, 5590), (1720, 5161), (1985, 4472), (2236, 3970), (2795, 3176)]