18967340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2298

約数の個数: 48

約数和(自身を含む): 46288704

約数和(自身を除く): 27321364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 2221, 4270, 4442, 8540, 8884, 11105, 15547, 22210, 31094, 44420, 62188, 77735, 135481, 155470, 270962, 310940, 541924, 677405, 948367, 1354810, 1896734, 2709620, 3793468, 4741835, 9483670, 18967340]

約数ペア:

[(1, 18967340), (2, 9483670), (4, 4741835), (5, 3793468), (7, 2709620), (10, 1896734), (14, 1354810), (20, 948367), (28, 677405), (35, 541924), (61, 310940), (70, 270962), (122, 155470), (140, 135481), (244, 77735), (305, 62188), (427, 44420), (610, 31094), (854, 22210), (1220, 15547), (1708, 11105), (2135, 8884), (2221, 8540), (4270, 4442)]