640504

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{59}}^2$

素因数の和:147

約数の個数: 24

約数和(自身を含む): 1274760

約数和(自身を除く): 634256

約数列:

[1, 2, 4, 8, 23, 46, 59, 92, 118, 184, 236, 472, 1357, 2714, 3481, 5428, 6962, 10856, 13924, 27848, 80063, 160126, 320252, 640504]

約数ペア:

[(1, 640504), (2, 320252), (4, 160126), (8, 80063), (23, 27848), (46, 13924), (59, 10856), (92, 6962), (118, 5428), (184, 3481), (236, 2714), (472, 1357)]