39975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:67

約数の個数: 24

約数和(自身を含む): 72912

約数和(自身を除く): 32937

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 195, 205, 325, 533, 615, 975, 1025, 1599, 2665, 3075, 7995, 13325, 39975]

約数ペア:

[(1, 39975), (3, 13325), (5, 7995), (13, 3075), (15, 2665), (25, 1599), (39, 1025), (41, 975), (65, 615), (75, 533), (123, 325), (195, 205)]