200909440

素因数分解:

$2^7\times 5^1\times {\mathrm{313921}}^1$

素因数の和:313940

約数の個数: 32

約数和(自身を含む): 480300660

約数和(自身を除く): 279391220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 313921, 627842, 1255684, 1569605, 2511368, 3139210, 5022736, 6278420, 10045472, 12556840, 20090944, 25113680, 40181888, 50227360, 100454720, 200909440]

約数ペア:

[(1, 200909440), (2, 100454720), (4, 50227360), (5, 40181888), (8, 25113680), (10, 20090944), (16, 12556840), (20, 10045472), (32, 6278420), (40, 5022736), (64, 3139210), (80, 2511368), (128, 1569605), (160, 1255684), (320, 627842), (640, 313921)]