90209875

素因数分解:

$5^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{787}}^1$

素因数の和:940

約数の個数: 32

約数和(自身を含む): 129811968

約数和(自身を除く): 39602093

約数列:

[1, 5, 7, 25, 35, 125, 131, 175, 655, 787, 875, 917, 3275, 3935, 4585, 5509, 16375, 19675, 22925, 27545, 98375, 103097, 114625, 137725, 515485, 688625, 721679, 2577425, 3608395, 12887125, 18041975, 90209875]

約数ペア:

[(1, 90209875), (5, 18041975), (7, 12887125), (25, 3608395), (35, 2577425), (125, 721679), (131, 688625), (175, 515485), (655, 137725), (787, 114625), (875, 103097), (917, 98375), (3275, 27545), (3935, 22925), (4585, 19675), (5509, 16375)]