12917840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12421}}^1$

素因数の和:12447

約数の個数: 40

約数和(自身を含む): 32346888

約数和(自身を除く): 19429048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12421, 24842, 49684, 62105, 99368, 124210, 161473, 198736, 248420, 322946, 496840, 645892, 807365, 993680, 1291784, 1614730, 2583568, 3229460, 6458920, 12917840]

約数ペア:

[(1, 12917840), (2, 6458920), (4, 3229460), (5, 2583568), (8, 1614730), (10, 1291784), (13, 993680), (16, 807365), (20, 645892), (26, 496840), (40, 322946), (52, 248420), (65, 198736), (80, 161473), (104, 124210), (130, 99368), (208, 62105), (260, 49684), (520, 24842), (1040, 12421)]