212978240

素因数分解:

$2^6\times 5^1\times {\mathrm{665557}}^1$

素因数の和:665574

約数の個数: 28

約数和(自身を含む): 507155196

約数和(自身を除く): 294176956

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 665557, 1331114, 2662228, 3327785, 5324456, 6655570, 10648912, 13311140, 21297824, 26622280, 42595648, 53244560, 106489120, 212978240]

約数ペア:

[(1, 212978240), (2, 106489120), (4, 53244560), (5, 42595648), (8, 26622280), (10, 21297824), (16, 13311140), (20, 10648912), (32, 6655570), (40, 5324456), (64, 3327785), (80, 2662228), (160, 1331114), (320, 665557)]