28661075

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 36747648

約数和(自身を除く): 8086573

約数列:

[1, 5, 25, 53, 97, 223, 265, 485, 1115, 1325, 2425, 5141, 5575, 11819, 21631, 25705, 59095, 108155, 128525, 295475, 540775, 1146443, 5732215, 28661075]

約数ペア:

[(1, 28661075), (5, 5732215), (25, 1146443), (53, 540775), (97, 295475), (223, 128525), (265, 108155), (485, 59095), (1115, 25705), (1325, 21631), (2425, 11819), (5141, 5575)]