25311975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 36

約数和(自身を含む): 45338616

約数和(自身を除く): 20026641

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 1997, 2535, 4225, 5991, 9985, 12675, 25961, 29955, 49925, 77883, 129805, 149775, 337493, 389415, 649025, 1012479, 1687465, 1947075, 5062395, 8437325, 25311975]

約数ペア:

[(1, 25311975), (3, 8437325), (5, 5062395), (13, 1947075), (15, 1687465), (25, 1012479), (39, 649025), (65, 389415), (75, 337493), (169, 149775), (195, 129805), (325, 77883), (507, 49925), (845, 29955), (975, 25961), (1997, 12675), (2535, 9985), (4225, 5991)]