28481025

素因数分解:

$3^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{947}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 47255904

約数和(自身を除く): 18774879

約数列:

[1, 3, 5, 15, 25, 75, 401, 947, 1203, 2005, 2841, 4735, 6015, 10025, 14205, 23675, 30075, 71025, 379747, 1139241, 1898735, 5696205, 9493675, 28481025]

約数ペア:

[(1, 28481025), (3, 9493675), (5, 5696205), (15, 1898735), (25, 1139241), (75, 379747), (401, 71025), (947, 30075), (1203, 23675), (2005, 14205), (2841, 10025), (4735, 6015)]