20881125

素因数分解:

$3^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 19554075

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 125, 135, 207, 225, 269, 345, 375, 575, 621, 675, 807, 1035, 1125, 1345, 1725, 2421, 2875, 3105, 3375, 4035, 5175, 6187, 6725, 7263, 8625, 12105, 15525, 18561, 20175, 25875, 30935, 33625, 36315, 55683, 60525, 77625, 92805, 100875, 154675, 167049, 181575, 278415, 302625, 464025, 773375, 835245, 907875, 1392075, 2320125, 4176225, 6960375, 20881125]

約数ペア:

[(1, 20881125), (3, 6960375), (5, 4176225), (9, 2320125), (15, 1392075), (23, 907875), (25, 835245), (27, 773375), (45, 464025), (69, 302625), (75, 278415), (115, 181575), (125, 167049), (135, 154675), (207, 100875), (225, 92805), (269, 77625), (345, 60525), (375, 55683), (575, 36315), (621, 33625), (675, 30935), (807, 25875), (1035, 20175), (1125, 18561), (1345, 15525), (1725, 12105), (2421, 8625), (2875, 7263), (3105, 6725), (3375, 6187), (4035, 5175)]