28169180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108343}}^1$

素因数の和:108365

約数の個数: 24

約数和(自身を含む): 63706272

約数和(自身を除く): 35537092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108343, 216686, 433372, 541715, 1083430, 1408459, 2166860, 2816918, 5633836, 7042295, 14084590, 28169180]

約数ペア:

[(1, 28169180), (2, 14084590), (4, 7042295), (5, 5633836), (10, 2816918), (13, 2166860), (20, 1408459), (26, 1083430), (52, 541715), (65, 433372), (130, 216686), (260, 108343)]