2565680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2467}}^1$

素因数の和:2493

約数の個数: 40

約数和(自身を含む): 6426672

約数和(自身を除く): 3860992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2467, 4934, 9868, 12335, 19736, 24670, 32071, 39472, 49340, 64142, 98680, 128284, 160355, 197360, 256568, 320710, 513136, 641420, 1282840, 2565680]

約数ペア:

[(1, 2565680), (2, 1282840), (4, 641420), (5, 513136), (8, 320710), (10, 256568), (13, 197360), (16, 160355), (20, 128284), (26, 98680), (40, 64142), (52, 49340), (65, 39472), (80, 32071), (104, 24670), (130, 19736), (208, 12335), (260, 9868), (520, 4934), (1040, 2467)]