28589275

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{727}}^1$

素因数の和:772

約数の個数: 36

約数和(自身を含む): 42021616

約数和(自身を除く): 13432341

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 275, 325, 605, 715, 727, 1573, 3025, 3575, 3635, 7865, 7997, 9451, 18175, 39325, 39985, 47255, 87967, 103961, 199925, 236275, 439835, 519805, 1143571, 2199175, 2599025, 5717855, 28589275]

約数ペア:

[(1, 28589275), (5, 5717855), (11, 2599025), (13, 2199175), (25, 1143571), (55, 519805), (65, 439835), (121, 236275), (143, 199925), (275, 103961), (325, 87967), (605, 47255), (715, 39985), (727, 39325), (1573, 18175), (3025, 9451), (3575, 7997), (3635, 7865)]