81574520

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13687}}^1$

素因数の和:13847

約数の個数: 32

約数和(自身を含む): 184788000

約数和(自身を除く): 103213480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 13687, 27374, 54748, 68435, 109496, 136870, 273740, 547480, 2039363, 4078726, 8157452, 10196815, 16314904, 20393630, 40787260, 81574520]

約数ペア:

[(1, 81574520), (2, 40787260), (4, 20393630), (5, 16314904), (8, 10196815), (10, 8157452), (20, 4078726), (40, 2039363), (149, 547480), (298, 273740), (596, 136870), (745, 109496), (1192, 68435), (1490, 54748), (2980, 27374), (5960, 13687)]