1282840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2467}}^1$

素因数の和:2491

約数の個数: 32

約数和(自身を含む): 3109680

約数和(自身を除く): 1826840

約数列:

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

約数ペア:

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