18682820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 42592368

約数和(自身を除く): 23909548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 397, 724, 794, 905, 1588, 1810, 1985, 2353, 3620, 3970, 4706, 5161, 7940, 9412, 10322, 11765, 20644, 23530, 25805, 47060, 51610, 71857, 103220, 143714, 287428, 359285, 718570, 934141, 1437140, 1868282, 3736564, 4670705, 9341410, 18682820]

約数ペア:

[(1, 18682820), (2, 9341410), (4, 4670705), (5, 3736564), (10, 1868282), (13, 1437140), (20, 934141), (26, 718570), (52, 359285), (65, 287428), (130, 143714), (181, 103220), (260, 71857), (362, 51610), (397, 47060), (724, 25805), (794, 23530), (905, 20644), (1588, 11765), (1810, 10322), (1985, 9412), (2353, 7940), (3620, 5161), (3970, 4706)]