55345420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{212867}}^1$

素因数の和:212889

約数の個数: 24

約数和(自身を含む): 125166384

約数和(自身を除く): 69820964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 212867, 425734, 851468, 1064335, 2128670, 2767271, 4257340, 5534542, 11069084, 13836355, 27672710, 55345420]

約数ペア:

[(1, 55345420), (2, 27672710), (4, 13836355), (5, 11069084), (10, 5534542), (13, 4257340), (20, 2767271), (26, 2128670), (52, 1064335), (65, 851468), (130, 425734), (260, 212867)]