5402020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 12418560

約数和(自身を除く): 7016540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 263, 316, 395, 526, 790, 1027, 1052, 1315, 1580, 2054, 2630, 3419, 4108, 5135, 5260, 6838, 10270, 13676, 17095, 20540, 20777, 34190, 41554, 68380, 83108, 103885, 207770, 270101, 415540, 540202, 1080404, 1350505, 2701010, 5402020]

約数ペア:

[(1, 5402020), (2, 2701010), (4, 1350505), (5, 1080404), (10, 540202), (13, 415540), (20, 270101), (26, 207770), (52, 103885), (65, 83108), (79, 68380), (130, 41554), (158, 34190), (260, 20777), (263, 20540), (316, 17095), (395, 13676), (526, 10270), (790, 6838), (1027, 5260), (1052, 5135), (1315, 4108), (1580, 3419), (2054, 2630)]