81117140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3089}}^1$

素因数の和:3212

約数の個数: 48

約数和(自身を含む): 185325840

約数和(自身を除く): 104208700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1313, 2020, 2626, 3089, 5252, 6178, 6565, 12356, 13130, 15445, 26260, 30890, 40157, 61780, 80314, 160628, 200785, 311989, 401570, 623978, 803140, 1247956, 1559945, 3119890, 4055857, 6239780, 8111714, 16223428, 20279285, 40558570, 81117140]

約数ペア:

[(1, 81117140), (2, 40558570), (4, 20279285), (5, 16223428), (10, 8111714), (13, 6239780), (20, 4055857), (26, 3119890), (52, 1559945), (65, 1247956), (101, 803140), (130, 623978), (202, 401570), (260, 311989), (404, 200785), (505, 160628), (1010, 80314), (1313, 61780), (2020, 40157), (2626, 30890), (3089, 26260), (5252, 15445), (6178, 13130), (6565, 12356)]