31686280

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6047}}^1$

素因数の和:6189

約数の個数: 32

約数和(自身を含む): 71850240

約数和(自身を除く): 40163960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 6047, 12094, 24188, 30235, 48376, 60470, 120940, 241880, 792157, 1584314, 3168628, 3960785, 6337256, 7921570, 15843140, 31686280]

約数ペア:

[(1, 31686280), (2, 15843140), (4, 7921570), (5, 6337256), (8, 3960785), (10, 3168628), (20, 1584314), (40, 792157), (131, 241880), (262, 120940), (524, 60470), (655, 48376), (1048, 30235), (1310, 24188), (2620, 12094), (5240, 6047)]