18065990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 33718464

約数和(自身を除く): 15652474

約数列:

[1, 2, 5, 10, 37, 74, 157, 185, 311, 314, 370, 622, 785, 1555, 1570, 3110, 5809, 11507, 11618, 23014, 29045, 48827, 57535, 58090, 97654, 115070, 244135, 488270, 1806599, 3613198, 9032995, 18065990]

約数ペア:

[(1, 18065990), (2, 9032995), (5, 3613198), (10, 1806599), (37, 488270), (74, 244135), (157, 115070), (185, 97654), (311, 58090), (314, 57535), (370, 48827), (622, 29045), (785, 23014), (1555, 11618), (1570, 11507), (3110, 5809)]