2399740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 5874624

約数和(自身を除く): 3474884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 281, 305, 427, 562, 610, 854, 1124, 1220, 1405, 1708, 1967, 2135, 2810, 3934, 4270, 5620, 7868, 8540, 9835, 17141, 19670, 34282, 39340, 68564, 85705, 119987, 171410, 239974, 342820, 479948, 599935, 1199870, 2399740]

約数ペア:

[(1, 2399740), (2, 1199870), (4, 599935), (5, 479948), (7, 342820), (10, 239974), (14, 171410), (20, 119987), (28, 85705), (35, 68564), (61, 39340), (70, 34282), (122, 19670), (140, 17141), (244, 9835), (281, 8540), (305, 7868), (427, 5620), (562, 4270), (610, 3934), (854, 2810), (1124, 2135), (1220, 1967), (1405, 1708)]