18629875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{797}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 26889408

約数和(自身を除く): 8259533

約数列:

[1, 5, 11, 17, 25, 55, 85, 125, 187, 275, 425, 797, 935, 1375, 2125, 3985, 4675, 8767, 13549, 19925, 23375, 43835, 67745, 99625, 149039, 219175, 338725, 745195, 1095875, 1693625, 3725975, 18629875]

約数ペア:

[(1, 18629875), (5, 3725975), (11, 1693625), (17, 1095875), (25, 745195), (55, 338725), (85, 219175), (125, 149039), (187, 99625), (275, 67745), (425, 43835), (797, 23375), (935, 19925), (1375, 13549), (2125, 8767), (3985, 4675)]