81505450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3389}}^1$

素因数の和:3451

約数の個数: 48

約数和(自身を含む): 167723640

約数和(自身を除く): 86218190

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 130, 185, 325, 370, 481, 650, 925, 962, 1850, 2405, 3389, 4810, 6778, 12025, 16945, 24050, 33890, 44057, 84725, 88114, 125393, 169450, 220285, 250786, 440570, 626965, 1101425, 1253930, 1630109, 2202850, 3134825, 3260218, 6269650, 8150545, 16301090, 40752725, 81505450]

約数ペア:

[(1, 81505450), (2, 40752725), (5, 16301090), (10, 8150545), (13, 6269650), (25, 3260218), (26, 3134825), (37, 2202850), (50, 1630109), (65, 1253930), (74, 1101425), (130, 626965), (185, 440570), (325, 250786), (370, 220285), (481, 169450), (650, 125393), (925, 88114), (962, 84725), (1850, 44057), (2405, 33890), (3389, 24050), (4810, 16945), (6778, 12025)]