215123775

素因数分解:

$3^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{7013}}^1$

素因数の和:7435

約数の個数: 24

約数和(自身を含む): 356591760

約数和(自身を除く): 141467985

約数列:

[1, 3, 5, 15, 25, 75, 409, 1227, 2045, 6135, 7013, 10225, 21039, 30675, 35065, 105195, 175325, 525975, 2868317, 8604951, 14341585, 43024755, 71707925, 215123775]

約数ペア:

[(1, 215123775), (3, 71707925), (5, 43024755), (15, 14341585), (25, 8604951), (75, 2868317), (409, 525975), (1227, 175325), (2045, 105195), (6135, 35065), (7013, 30675), (10225, 21039)]