656848

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:742

約数の個数: 20

約数和(自身を含む): 1295428

約数和(自身を除く): 638580

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 673, 976, 1346, 2692, 5384, 10768, 41053, 82106, 164212, 328424, 656848]

約数ペア:

[(1, 656848), (2, 328424), (4, 164212), (8, 82106), (16, 41053), (61, 10768), (122, 5384), (244, 2692), (488, 1346), (673, 976)]