815115

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{1109}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 1518480

約数和(自身を除く): 703365

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 1109, 3327, 5545, 7763, 16635, 23289, 38815, 54341, 116445, 163023, 271705, 815115]

約数ペア:

[(1, 815115), (3, 271705), (5, 163023), (7, 116445), (15, 54341), (21, 38815), (35, 23289), (49, 16635), (105, 7763), (147, 5545), (245, 3327), (735, 1109)]