18868125

素因数分解:

$3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 32614560

約数和(自身を除く): 13746435

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 347, 375, 435, 625, 725, 1041, 1735, 1875, 2175, 3625, 5205, 8675, 10063, 10875, 18125, 26025, 30189, 43375, 50315, 54375, 130125, 150945, 216875, 251575, 650625, 754725, 1257875, 3773625, 6289375, 18868125]

約数ペア:

[(1, 18868125), (3, 6289375), (5, 3773625), (15, 1257875), (25, 754725), (29, 650625), (75, 251575), (87, 216875), (125, 150945), (145, 130125), (347, 54375), (375, 50315), (435, 43375), (625, 30189), (725, 26025), (1041, 18125), (1735, 10875), (1875, 10063), (2175, 8675), (3625, 5205)]