79640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 196560

約数和(自身を除く): 116920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 905, 1448, 1810, 1991, 3620, 3982, 7240, 7964, 9955, 15928, 19910, 39820, 79640]

約数ペア:

[(1, 79640), (2, 39820), (4, 19910), (5, 15928), (8, 9955), (10, 7964), (11, 7240), (20, 3982), (22, 3620), (40, 1991), (44, 1810), (55, 1448), (88, 905), (110, 724), (181, 440), (220, 362)]