18484375

素因数分解:

$5^6\times 7^1\times {\mathrm{13}}^2$

素因数の和:63

約数の個数: 42

約数和(自身を含む): 28593384

約数和(自身を除く): 10109009

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 169, 175, 325, 455, 625, 845, 875, 1183, 1625, 2275, 3125, 4225, 4375, 5915, 8125, 11375, 15625, 21125, 21875, 29575, 40625, 56875, 105625, 109375, 147875, 203125, 284375, 528125, 739375, 1421875, 2640625, 3696875, 18484375]

約数ペア:

[(1, 18484375), (5, 3696875), (7, 2640625), (13, 1421875), (25, 739375), (35, 528125), (65, 284375), (91, 203125), (125, 147875), (169, 109375), (175, 105625), (325, 56875), (455, 40625), (625, 29575), (845, 21875), (875, 21125), (1183, 15625), (1625, 11375), (2275, 8125), (3125, 5915), (4225, 4375)]