64921790

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{64279}}^1$

素因数の和:64387

約数の個数: 16

約数和(自身を含む): 118018080

約数和(自身を除く): 53096290

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 64279, 128558, 321395, 642790, 6492179, 12984358, 32460895, 64921790]

約数ペア:

[(1, 64921790), (2, 32460895), (5, 12984358), (10, 6492179), (101, 642790), (202, 321395), (505, 128558), (1010, 64279)]