128517825

素因数分解:

$3^1\times 5^2\times {\mathrm{571}}^1\times {\mathrm{3001}}^1$

素因数の和:3585

約数の個数: 24

約数和(自身を含む): 212925856

約数和(自身を除く): 84408031

約数列:

[1, 3, 5, 15, 25, 75, 571, 1713, 2855, 3001, 8565, 9003, 14275, 15005, 42825, 45015, 75025, 225075, 1713571, 5140713, 8567855, 25703565, 42839275, 128517825]

約数ペア:

[(1, 128517825), (3, 42839275), (5, 25703565), (15, 8567855), (25, 5140713), (75, 1713571), (571, 225075), (1713, 75025), (2855, 45015), (3001, 42825), (8565, 15005), (9003, 14275)]