28380675

素因数分解:

$3^1\times 5^2\times {\mathrm{227}}^1\times {\mathrm{1667}}^1$

素因数の和:1907

約数の個数: 24

約数和(自身を含む): 47157696

約数和(自身を除く): 18777021

約数列:

[1, 3, 5, 15, 25, 75, 227, 681, 1135, 1667, 3405, 5001, 5675, 8335, 17025, 25005, 41675, 125025, 378409, 1135227, 1892045, 5676135, 9460225, 28380675]

約数ペア:

[(1, 28380675), (3, 9460225), (5, 5676135), (15, 1892045), (25, 1135227), (75, 378409), (227, 125025), (681, 41675), (1135, 25005), (1667, 17025), (3405, 8335), (5001, 5675)]