678020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 1693440

約数和(自身を除く): 1015420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 167, 203, 290, 334, 406, 580, 668, 812, 835, 1015, 1169, 1670, 2030, 2338, 3340, 4060, 4676, 4843, 5845, 9686, 11690, 19372, 23380, 24215, 33901, 48430, 67802, 96860, 135604, 169505, 339010, 678020]

約数ペア:

[(1, 678020), (2, 339010), (4, 169505), (5, 135604), (7, 96860), (10, 67802), (14, 48430), (20, 33901), (28, 24215), (29, 23380), (35, 19372), (58, 11690), (70, 9686), (116, 5845), (140, 4843), (145, 4676), (167, 4060), (203, 3340), (290, 2338), (334, 2030), (406, 1670), (580, 1169), (668, 1015), (812, 835)]