81467240

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13669}}^1$

素因数の和:13829

約数の個数: 32

約数和(自身を含む): 184545000

約数和(自身を除く): 103077760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 13669, 27338, 54676, 68345, 109352, 136690, 273380, 546760, 2036681, 4073362, 8146724, 10183405, 16293448, 20366810, 40733620, 81467240]

約数ペア:

[(1, 81467240), (2, 40733620), (4, 20366810), (5, 16293448), (8, 10183405), (10, 8146724), (20, 4073362), (40, 2036681), (149, 546760), (298, 273380), (596, 136690), (745, 109352), (1192, 68345), (1490, 54676), (2980, 27338), (5960, 13669)]