640226158

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{6763}}^1$

素因数の和:7120

約数の個数: 32

約数和(自身を含む): 1131806592

約数和(自身を除く): 491580434

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 331, 662, 3641, 4303, 6763, 7282, 8606, 13526, 47333, 74393, 87919, 94666, 148786, 175838, 967109, 1934218, 2238553, 4477106, 24624083, 29101189, 49248166, 58202378, 320113079, 640226158]

約数ペア:

[(1, 640226158), (2, 320113079), (11, 58202378), (13, 49248166), (22, 29101189), (26, 24624083), (143, 4477106), (286, 2238553), (331, 1934218), (662, 967109), (3641, 175838), (4303, 148786), (6763, 94666), (7282, 87919), (8606, 74393), (13526, 47333)]