90003975

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 153513984

約数和(自身を除く): 63510009

約数列:

[1, 3, 5, 15, 25, 61, 75, 103, 183, 191, 305, 309, 515, 573, 915, 955, 1525, 1545, 2575, 2865, 4575, 4775, 6283, 7725, 11651, 14325, 18849, 19673, 31415, 34953, 58255, 59019, 94245, 98365, 157075, 174765, 291275, 295095, 471225, 491825, 873825, 1200053, 1475475, 3600159, 6000265, 18000795, 30001325, 90003975]

約数ペア:

[(1, 90003975), (3, 30001325), (5, 18000795), (15, 6000265), (25, 3600159), (61, 1475475), (75, 1200053), (103, 873825), (183, 491825), (191, 471225), (305, 295095), (309, 291275), (515, 174765), (573, 157075), (915, 98365), (955, 94245), (1525, 59019), (1545, 58255), (2575, 34953), (2865, 31415), (4575, 19673), (4775, 18849), (6283, 14325), (7725, 11651)]