208528816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{420421}}^1$

素因数の和:420460

約数の個数: 20

約数和(自身を含む): 417058624

約数和(自身を除く): 208529808

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 420421, 840842, 1681684, 3363368, 6726736, 13033051, 26066102, 52132204, 104264408, 208528816]

約数ペア:

[(1, 208528816), (2, 104264408), (4, 52132204), (8, 26066102), (16, 13033051), (31, 6726736), (62, 3363368), (124, 1681684), (248, 840842), (496, 420421)]