28706975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{751}}^1$

素因数の和:911

約数の個数: 24

約数和(自身を含む): 39164160

約数和(自身を除く): 10457185

約数列:

[1, 5, 11, 25, 55, 139, 275, 695, 751, 1529, 3475, 3755, 7645, 8261, 18775, 38225, 41305, 104389, 206525, 521945, 1148279, 2609725, 5741395, 28706975]

約数ペア:

[(1, 28706975), (5, 5741395), (11, 2609725), (25, 1148279), (55, 521945), (139, 206525), (275, 104389), (695, 41305), (751, 38225), (1529, 18775), (3475, 8261), (3755, 7645)]