61553680

素因数分解:

$2^4\times 5^1\times {\mathrm{769421}}^1$

素因数の和:769434

約数の個数: 20

約数和(自身を含む): 143112492

約数和(自身を除く): 81558812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 769421, 1538842, 3077684, 3847105, 6155368, 7694210, 12310736, 15388420, 30776840, 61553680]

約数ペア:

[(1, 61553680), (2, 30776840), (4, 15388420), (5, 12310736), (8, 7694210), (10, 6155368), (16, 3847105), (20, 3077684), (40, 1538842), (80, 769421)]