420199363580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{677740909}}^1$

素因数の和:677740949

約数の個数: 24

約数和(自身を含む): 910883783040

約数和(自身を除く): 490684419460

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 677740909, 1355481818, 2710963636, 3388704545, 6777409090, 13554818180, 21009968179, 42019936358, 84039872716, 105049840895, 210099681790, 420199363580]

約数ペア:

[(1, 420199363580), (2, 210099681790), (4, 105049840895), (5, 84039872716), (10, 42019936358), (20, 21009968179), (31, 13554818180), (62, 6777409090), (124, 3388704545), (155, 2710963636), (310, 1355481818), (620, 677740909)]