18493670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 37314432

約数和(自身を除く): 18820762

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 353, 403, 706, 806, 845, 1690, 1765, 2015, 3530, 4030, 4589, 5239, 9178, 10478, 10943, 21886, 22945, 26195, 45890, 52390, 54715, 59657, 109430, 119314, 142259, 284518, 298285, 596570, 711295, 1422590, 1849367, 3698734, 9246835, 18493670]

約数ペア:

[(1, 18493670), (2, 9246835), (5, 3698734), (10, 1849367), (13, 1422590), (26, 711295), (31, 596570), (62, 298285), (65, 284518), (130, 142259), (155, 119314), (169, 109430), (310, 59657), (338, 54715), (353, 52390), (403, 45890), (706, 26195), (806, 22945), (845, 21886), (1690, 10943), (1765, 10478), (2015, 9178), (3530, 5239), (4030, 4589)]