2018016520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3880801}}^1$

素因数の和:3880825

約数の個数: 32

約数和(自身を含む): 4889810520

約数和(自身を除く): 2871794000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3880801, 7761602, 15523204, 19404005, 31046408, 38808010, 50450413, 77616020, 100900826, 155232040, 201801652, 252252065, 403603304, 504504130, 1009008260, 2018016520]

約数ペア:

[(1, 2018016520), (2, 1009008260), (4, 504504130), (5, 403603304), (8, 252252065), (10, 201801652), (13, 155232040), (20, 100900826), (26, 77616020), (40, 50450413), (52, 38808010), (65, 31046408), (104, 19404005), (130, 15523204), (260, 7761602), (520, 3880801)]