66395875

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{449}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 102772800

約数和(自身を除く): 36376925

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 169, 175, 325, 449, 455, 845, 875, 1183, 1625, 2245, 2275, 3143, 4225, 5837, 5915, 11225, 11375, 15715, 21125, 29185, 29575, 40859, 56125, 75881, 78575, 145925, 147875, 204295, 379405, 392875, 531167, 729625, 1021475, 1897025, 2655835, 5107375, 9485125, 13279175, 66395875]

約数ペア:

[(1, 66395875), (5, 13279175), (7, 9485125), (13, 5107375), (25, 2655835), (35, 1897025), (65, 1021475), (91, 729625), (125, 531167), (169, 392875), (175, 379405), (325, 204295), (449, 147875), (455, 145925), (845, 78575), (875, 75881), (1183, 56125), (1625, 40859), (2245, 29575), (2275, 29185), (3143, 21125), (4225, 15715), (5837, 11375), (5915, 11225)]