20092020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25759}}^1$

素因数の和:25784

約数の個数: 48

約数和(自身を含む): 60587520

約数和(自身を除く): 40495500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25759, 51518, 77277, 103036, 128795, 154554, 257590, 309108, 334867, 386385, 515180, 669734, 772770, 1004601, 1339468, 1545540, 1674335, 2009202, 3348670, 4018404, 5023005, 6697340, 10046010, 20092020]

約数ペア:

[(1, 20092020), (2, 10046010), (3, 6697340), (4, 5023005), (5, 4018404), (6, 3348670), (10, 2009202), (12, 1674335), (13, 1545540), (15, 1339468), (20, 1004601), (26, 772770), (30, 669734), (39, 515180), (52, 386385), (60, 334867), (65, 309108), (78, 257590), (130, 154554), (156, 128795), (195, 103036), (260, 77277), (390, 51518), (780, 25759)]