640459854

素因数分解:

$2^1\times 3^2\times {\mathrm{2801}}^1\times {\mathrm{12703}}^1$

素因数の和:15512

約数の個数: 24

約数和(自身を含む): 1388267712

約数和(自身を除く): 747807858

約数列:

[1, 2, 3, 6, 9, 18, 2801, 5602, 8403, 12703, 16806, 25209, 25406, 38109, 50418, 76218, 114327, 228654, 35581103, 71162206, 106743309, 213486618, 320229927, 640459854]

約数ペア:

[(1, 640459854), (2, 320229927), (3, 213486618), (6, 106743309), (9, 71162206), (18, 35581103), (2801, 228654), (5602, 114327), (8403, 76218), (12703, 50418), (16806, 38109), (25209, 25406)]