66521375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 89868480

約数和(自身を除く): 23347105

約数列:

[1, 5, 19, 25, 37, 95, 125, 185, 475, 703, 757, 925, 2375, 3515, 3785, 4625, 14383, 17575, 18925, 28009, 71915, 87875, 94625, 140045, 359575, 532171, 700225, 1797875, 2660855, 3501125, 13304275, 66521375]

約数ペア:

[(1, 66521375), (5, 13304275), (19, 3501125), (25, 2660855), (37, 1797875), (95, 700225), (125, 532171), (185, 359575), (475, 140045), (703, 94625), (757, 87875), (925, 71915), (2375, 28009), (3515, 18925), (3785, 17575), (4625, 14383)]