15120375

素因数分解:

$3^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 25611456

約数和(自身を除く): 10491081

約数列:

[1, 3, 5, 15, 25, 61, 75, 125, 183, 305, 375, 661, 915, 1525, 1983, 3305, 4575, 7625, 9915, 16525, 22875, 40321, 49575, 82625, 120963, 201605, 247875, 604815, 1008025, 3024075, 5040125, 15120375]

約数ペア:

[(1, 15120375), (3, 5040125), (5, 3024075), (15, 1008025), (25, 604815), (61, 247875), (75, 201605), (125, 120963), (183, 82625), (305, 49575), (375, 40321), (661, 22875), (915, 16525), (1525, 9915), (1983, 7625), (3305, 4575)]