266778020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{1733}}^1$

素因数の和:1964

約数の個数: 48

約数和(自身を含む): 576797760

約数和(自身を除く): 310019740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 716, 860, 895, 1733, 1790, 3466, 3580, 6932, 7697, 8665, 15394, 17330, 30788, 34660, 38485, 74519, 76970, 149038, 153940, 298076, 310207, 372595, 620414, 745190, 1240828, 1490380, 1551035, 3102070, 6204140, 13338901, 26677802, 53355604, 66694505, 133389010, 266778020]

約数ペア:

[(1, 266778020), (2, 133389010), (4, 66694505), (5, 53355604), (10, 26677802), (20, 13338901), (43, 6204140), (86, 3102070), (172, 1551035), (179, 1490380), (215, 1240828), (358, 745190), (430, 620414), (716, 372595), (860, 310207), (895, 298076), (1733, 153940), (1790, 149038), (3466, 76970), (3580, 74519), (6932, 38485), (7697, 34660), (8665, 30788), (15394, 17330)]