20700464

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1$

素因数の和:597

約数の個数: 40

約数和(自身を含む): 41842560

約数和(自身を除く): 21142096

約数列:

[1, 2, 4, 8, 16, 37, 73, 74, 146, 148, 292, 296, 479, 584, 592, 958, 1168, 1916, 2701, 3832, 5402, 7664, 10804, 17723, 21608, 34967, 35446, 43216, 69934, 70892, 139868, 141784, 279736, 283568, 559472, 1293779, 2587558, 5175116, 10350232, 20700464]

約数ペア:

[(1, 20700464), (2, 10350232), (4, 5175116), (8, 2587558), (16, 1293779), (37, 559472), (73, 283568), (74, 279736), (146, 141784), (148, 139868), (292, 70892), (296, 69934), (479, 43216), (584, 35446), (592, 34967), (958, 21608), (1168, 17723), (1916, 10804), (2701, 7664), (3832, 5402)]