85717840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82421}}^1$

素因数の和:82447

約数の個数: 40

約数和(自身を含む): 214626888

約数和(自身を除く): 128909048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 82421, 164842, 329684, 412105, 659368, 824210, 1071473, 1318736, 1648420, 2142946, 3296840, 4285892, 5357365, 6593680, 8571784, 10714730, 17143568, 21429460, 42858920, 85717840]

約数ペア:

[(1, 85717840), (2, 42858920), (4, 21429460), (5, 17143568), (8, 10714730), (10, 8571784), (13, 6593680), (16, 5357365), (20, 4285892), (26, 3296840), (40, 2142946), (52, 1648420), (65, 1318736), (80, 1071473), (104, 824210), (130, 659368), (208, 412105), (260, 329684), (520, 164842), (1040, 82421)]