639786704

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{2352157}}^1$

素因数の和:2352182

約数の個数: 20

約数和(自身を含む): 1312504164

約数和(自身を除く): 672717460

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 2352157, 4704314, 9408628, 18817256, 37634512, 39986669, 79973338, 159946676, 319893352, 639786704]

約数ペア:

[(1, 639786704), (2, 319893352), (4, 159946676), (8, 79973338), (16, 39986669), (17, 37634512), (34, 18817256), (68, 9408628), (136, 4704314), (272, 2352157)]