18484625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:258

約数の個数: 32

約数和(自身を含む): 24984960

約数和(自身を除く): 6500335

約数列:

[1, 5, 19, 25, 43, 95, 125, 181, 215, 475, 817, 905, 1075, 2375, 3439, 4085, 4525, 5375, 7783, 17195, 20425, 22625, 38915, 85975, 102125, 147877, 194575, 429875, 739385, 972875, 3696925, 18484625]

約数ペア:

[(1, 18484625), (5, 3696925), (19, 972875), (25, 739385), (43, 429875), (95, 194575), (125, 147877), (181, 102125), (215, 85975), (475, 38915), (817, 22625), (905, 20425), (1075, 17195), (2375, 7783), (3439, 5375), (4085, 4525)]