18057875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 25698816

約数和(自身を除く): 7640941

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 571, 575, 1265, 1375, 2855, 2875, 6281, 6325, 13133, 14275, 31405, 31625, 65665, 71375, 144463, 157025, 328325, 722315, 785125, 1641625, 3611575, 18057875]

約数ペア:

[(1, 18057875), (5, 3611575), (11, 1641625), (23, 785125), (25, 722315), (55, 328325), (115, 157025), (125, 144463), (253, 71375), (275, 65665), (571, 31625), (575, 31405), (1265, 14275), (1375, 13133), (2855, 6325), (2875, 6281)]