51316590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131581}}^1$

素因数の和:131604

約数の個数: 32

約数和(自身を含む): 132634656

約数和(自身を除く): 81318066

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 131581, 263162, 394743, 657905, 789486, 1315810, 1710553, 1973715, 3421106, 3947430, 5131659, 8552765, 10263318, 17105530, 25658295, 51316590]

約数ペア:

[(1, 51316590), (2, 25658295), (3, 17105530), (5, 10263318), (6, 8552765), (10, 5131659), (13, 3947430), (15, 3421106), (26, 1973715), (30, 1710553), (39, 1315810), (65, 789486), (78, 657905), (130, 394743), (195, 263162), (390, 131581)]