406709480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{1321}}^1$

素因数の和:1554

約数の個数: 64

約数和(自身を含む): 942321600

約数和(自身を除く): 535612120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 179, 215, 344, 358, 430, 716, 860, 895, 1321, 1432, 1720, 1790, 2642, 3580, 5284, 6605, 7160, 7697, 10568, 13210, 15394, 26420, 30788, 38485, 52840, 56803, 61576, 76970, 113606, 153940, 227212, 236459, 284015, 307880, 454424, 472918, 568030, 945836, 1136060, 1182295, 1891672, 2272120, 2364590, 4729180, 9458360, 10167737, 20335474, 40670948, 50838685, 81341896, 101677370, 203354740, 406709480]

約数ペア:

[(1, 406709480), (2, 203354740), (4, 101677370), (5, 81341896), (8, 50838685), (10, 40670948), (20, 20335474), (40, 10167737), (43, 9458360), (86, 4729180), (172, 2364590), (179, 2272120), (215, 1891672), (344, 1182295), (358, 1136060), (430, 945836), (716, 568030), (860, 472918), (895, 454424), (1321, 307880), (1432, 284015), (1720, 236459), (1790, 227212), (2642, 153940), (3580, 113606), (5284, 76970), (6605, 61576), (7160, 56803), (7697, 52840), (10568, 38485), (13210, 30788), (15394, 26420)]