31806145

素因数分解:

$5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 44782848

約数和(自身を除く): 12976703

約数列:

[1, 5, 7, 35, 49, 131, 245, 655, 917, 991, 4585, 4955, 6419, 6937, 32095, 34685, 48559, 129821, 242795, 649105, 908747, 4543735, 6361229, 31806145]

約数ペア:

[(1, 31806145), (5, 6361229), (7, 4543735), (35, 908747), (49, 649105), (131, 242795), (245, 129821), (655, 48559), (917, 34685), (991, 32095), (4585, 6937), (4955, 6419)]