25397840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24421}}^1$

素因数の和:24447

約数の個数: 40

約数和(自身を含む): 63594888

約数和(自身を除く): 38197048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24421, 48842, 97684, 122105, 195368, 244210, 317473, 390736, 488420, 634946, 976840, 1269892, 1587365, 1953680, 2539784, 3174730, 5079568, 6349460, 12698920, 25397840]

約数ペア:

[(1, 25397840), (2, 12698920), (4, 6349460), (5, 5079568), (8, 3174730), (10, 2539784), (13, 1953680), (16, 1587365), (20, 1269892), (26, 976840), (40, 634946), (52, 488420), (65, 390736), (80, 317473), (104, 244210), (130, 195368), (208, 122105), (260, 97684), (520, 48842), (1040, 24421)]