20275875

素因数分解:

$3^2\times 5^3\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 37234080

約数和(自身を除く): 16958205

約数列:

[1, 3, 5, 9, 15, 25, 45, 67, 75, 125, 201, 225, 269, 335, 375, 603, 807, 1005, 1125, 1345, 1675, 2421, 3015, 4035, 5025, 6725, 8375, 12105, 15075, 18023, 20175, 25125, 33625, 54069, 60525, 75375, 90115, 100875, 162207, 270345, 302625, 450575, 811035, 1351725, 2252875, 4055175, 6758625, 20275875]

約数ペア:

[(1, 20275875), (3, 6758625), (5, 4055175), (9, 2252875), (15, 1351725), (25, 811035), (45, 450575), (67, 302625), (75, 270345), (125, 162207), (201, 100875), (225, 90115), (269, 75375), (335, 60525), (375, 54069), (603, 33625), (807, 25125), (1005, 20175), (1125, 18023), (1345, 15075), (1675, 12105), (2421, 8375), (3015, 6725), (4035, 5025)]