31304540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19813}}^1$

素因数の和:19901

約数の個数: 24

約数和(自身を含む): 66575040

約数和(自身を除く): 35270500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19813, 39626, 79252, 99065, 198130, 396260, 1565227, 3130454, 6260908, 7826135, 15652270, 31304540]

約数ペア:

[(1, 31304540), (2, 15652270), (4, 7826135), (5, 6260908), (10, 3130454), (20, 1565227), (79, 396260), (158, 198130), (316, 99065), (395, 79252), (790, 39626), (1580, 19813)]