81972575

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3853}}^1$

素因数の和:3923

約数の個数: 24

約数和(自身を含む): 108960288

約数和(自身を除く): 26987713

約数列:

[1, 5, 23, 25, 37, 115, 185, 575, 851, 925, 3853, 4255, 19265, 21275, 88619, 96325, 142561, 443095, 712805, 2215475, 3278903, 3564025, 16394515, 81972575]

約数ペア:

[(1, 81972575), (5, 16394515), (23, 3564025), (25, 3278903), (37, 2215475), (115, 712805), (185, 443095), (575, 142561), (851, 96325), (925, 88619), (3853, 21275), (4255, 19265)]