30690680

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5857}}^1$

素因数の和:5999

約数の個数: 32

約数和(自身を含む): 69593040

約数和(自身を除く): 38902360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5857, 11714, 23428, 29285, 46856, 58570, 117140, 234280, 767267, 1534534, 3069068, 3836335, 6138136, 7672670, 15345340, 30690680]

約数ペア:

[(1, 30690680), (2, 15345340), (4, 7672670), (5, 6138136), (8, 3836335), (10, 3069068), (20, 1534534), (40, 767267), (131, 234280), (262, 117140), (524, 58570), (655, 46856), (1048, 29285), (1310, 23428), (2620, 11714), (5240, 5857)]