28878575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5527}}^1$

素因数の和:5567

約数の個数: 24

約数和(自身を含む): 41128320

約数和(自身を除く): 12249745

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 5225, 5527, 27635, 60797, 105013, 138175, 303985, 525065, 1155143, 1519925, 2625325, 5775715, 28878575]

約数ペア:

[(1, 28878575), (5, 5775715), (11, 2625325), (19, 1519925), (25, 1155143), (55, 525065), (95, 303985), (209, 138175), (275, 105013), (475, 60797), (1045, 27635), (5225, 5527)]