31890225

素因数分解:

$3^1\times 5^2\times {\mathrm{449}}^1\times {\mathrm{947}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 52898400

約数和(自身を除く): 21008175

約数列:

[1, 3, 5, 15, 25, 75, 449, 947, 1347, 2245, 2841, 4735, 6735, 11225, 14205, 23675, 33675, 71025, 425203, 1275609, 2126015, 6378045, 10630075, 31890225]

約数ペア:

[(1, 31890225), (3, 10630075), (5, 6378045), (15, 2126015), (25, 1275609), (75, 425203), (449, 71025), (947, 33675), (1347, 23675), (2245, 14205), (2841, 11225), (4735, 6735)]