640429724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{2203}}^1\times {\mathrm{6607}}^1$

素因数の和:8825

約数の個数: 24

約数和(自身を含む): 1223378688

約数和(自身を除く): 582948964

約数列:

[1, 2, 4, 11, 22, 44, 2203, 4406, 6607, 8812, 13214, 24233, 26428, 48466, 72677, 96932, 145354, 290708, 14555221, 29110442, 58220884, 160107431, 320214862, 640429724]

約数ペア:

[(1, 640429724), (2, 320214862), (4, 160107431), (11, 58220884), (22, 29110442), (44, 14555221), (2203, 290708), (4406, 145354), (6607, 96932), (8812, 72677), (13214, 48466), (24233, 26428)]