28068375

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^2\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 48915360

約数和(自身を除く): 20846985

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 89, 125, 145, 267, 375, 435, 445, 725, 841, 1335, 2175, 2225, 2523, 2581, 3625, 4205, 6675, 7743, 10875, 11125, 12615, 12905, 21025, 33375, 38715, 63075, 64525, 74849, 105125, 193575, 224547, 315375, 322625, 374245, 967875, 1122735, 1871225, 5613675, 9356125, 28068375]

約数ペア:

[(1, 28068375), (3, 9356125), (5, 5613675), (15, 1871225), (25, 1122735), (29, 967875), (75, 374245), (87, 322625), (89, 315375), (125, 224547), (145, 193575), (267, 105125), (375, 74849), (435, 64525), (445, 63075), (725, 38715), (841, 33375), (1335, 21025), (2175, 12905), (2225, 12615), (2523, 11125), (2581, 10875), (3625, 7743), (4205, 6675)]