65957840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{63421}}^1$

素因数の和:63447

約数の個数: 40

約数和(自身を含む): 165150888

約数和(自身を除く): 99193048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 63421, 126842, 253684, 317105, 507368, 634210, 824473, 1014736, 1268420, 1648946, 2536840, 3297892, 4122365, 5073680, 6595784, 8244730, 13191568, 16489460, 32978920, 65957840]

約数ペア:

[(1, 65957840), (2, 32978920), (4, 16489460), (5, 13191568), (8, 8244730), (10, 6595784), (13, 5073680), (16, 4122365), (20, 3297892), (26, 2536840), (40, 1648946), (52, 1268420), (65, 1014736), (80, 824473), (104, 634210), (130, 507368), (208, 317105), (260, 253684), (520, 126842), (1040, 63421)]