8127820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 18275040

約数和(自身を除く): 10147220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 293, 365, 380, 586, 730, 1172, 1387, 1460, 1465, 2774, 2930, 5548, 5567, 5860, 6935, 11134, 13870, 21389, 22268, 27740, 27835, 42778, 55670, 85556, 106945, 111340, 213890, 406391, 427780, 812782, 1625564, 2031955, 4063910, 8127820]

約数ペア:

[(1, 8127820), (2, 4063910), (4, 2031955), (5, 1625564), (10, 812782), (19, 427780), (20, 406391), (38, 213890), (73, 111340), (76, 106945), (95, 85556), (146, 55670), (190, 42778), (292, 27835), (293, 27740), (365, 22268), (380, 21389), (586, 13870), (730, 11134), (1172, 6935), (1387, 5860), (1460, 5567), (1465, 5548), (2774, 2930)]