40478840

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5591}}^1$

素因数の和:5783

約数の個数: 32

約数和(自身を含む): 91596960

約数和(自身を除く): 51118120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 5591, 7240, 11182, 22364, 27955, 44728, 55910, 111820, 223640, 1011971, 2023942, 4047884, 5059855, 8095768, 10119710, 20239420, 40478840]

約数ペア:

[(1, 40478840), (2, 20239420), (4, 10119710), (5, 8095768), (8, 5059855), (10, 4047884), (20, 2023942), (40, 1011971), (181, 223640), (362, 111820), (724, 55910), (905, 44728), (1448, 27955), (1810, 22364), (3620, 11182), (5591, 7240)]