28026440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53897}}^1$

素因数の和:53921

約数の個数: 32

約数和(自身を含む): 67911480

約数和(自身を除く): 39885040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 53897, 107794, 215588, 269485, 431176, 538970, 700661, 1077940, 1401322, 2155880, 2802644, 3503305, 5605288, 7006610, 14013220, 28026440]

約数ペア:

[(1, 28026440), (2, 14013220), (4, 7006610), (5, 5605288), (8, 3503305), (10, 2802644), (13, 2155880), (20, 1401322), (26, 1077940), (40, 700661), (52, 538970), (65, 431176), (104, 269485), (130, 215588), (260, 107794), (520, 53897)]