1313520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 4395552

約数和(自身を除く): 3082032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 421, 520, 624, 780, 842, 1040, 1263, 1560, 1684, 2105, 2526, 3120, 3368, 4210, 5052, 5473, 6315, 6736, 8420, 10104, 10946, 12630, 16419, 16840, 20208, 21892, 25260, 27365, 32838, 33680, 43784, 50520, 54730, 65676, 82095, 87568, 101040, 109460, 131352, 164190, 218920, 262704, 328380, 437840, 656760, 1313520]

約数ペア:

[(1, 1313520), (2, 656760), (3, 437840), (4, 328380), (5, 262704), (6, 218920), (8, 164190), (10, 131352), (12, 109460), (13, 101040), (15, 87568), (16, 82095), (20, 65676), (24, 54730), (26, 50520), (30, 43784), (39, 33680), (40, 32838), (48, 27365), (52, 25260), (60, 21892), (65, 20208), (78, 16840), (80, 16419), (104, 12630), (120, 10946), (130, 10104), (156, 8420), (195, 6736), (208, 6315), (240, 5473), (260, 5052), (312, 4210), (390, 3368), (421, 3120), (520, 2526), (624, 2105), (780, 1684), (842, 1560), (1040, 1263)]