40640625

素因数分解:

$3^2\times 5^6\times {\mathrm{17}}^2$

素因数の和:70

約数の個数: 63

約数和(自身を含む): 77948221

約数和(自身を除く): 37307596

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 125, 153, 225, 255, 289, 375, 425, 625, 765, 867, 1125, 1275, 1445, 1875, 2125, 2601, 3125, 3825, 4335, 5625, 6375, 7225, 9375, 10625, 13005, 15625, 19125, 21675, 28125, 31875, 36125, 46875, 53125, 65025, 95625, 108375, 140625, 159375, 180625, 265625, 325125, 478125, 541875, 796875, 903125, 1625625, 2390625, 2709375, 4515625, 8128125, 13546875, 40640625]

約数ペア:

[(1, 40640625), (3, 13546875), (5, 8128125), (9, 4515625), (15, 2709375), (17, 2390625), (25, 1625625), (45, 903125), (51, 796875), (75, 541875), (85, 478125), (125, 325125), (153, 265625), (225, 180625), (255, 159375), (289, 140625), (375, 108375), (425, 95625), (625, 65025), (765, 53125), (867, 46875), (1125, 36125), (1275, 31875), (1445, 28125), (1875, 21675), (2125, 19125), (2601, 15625), (3125, 13005), (3825, 10625), (4335, 9375), (5625, 7225)]