81500980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2917}}^1$

素因数の和:3064

約数の個数: 48

約数和(自身を含む): 188246016

約数和(自身を除く): 106745036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 1270, 1397, 2540, 2794, 2917, 5588, 5834, 6985, 11668, 13970, 14585, 27940, 29170, 32087, 58340, 64174, 128348, 160435, 320870, 370459, 641740, 740918, 1481836, 1852295, 3704590, 4075049, 7409180, 8150098, 16300196, 20375245, 40750490, 81500980]

約数ペア:

[(1, 81500980), (2, 40750490), (4, 20375245), (5, 16300196), (10, 8150098), (11, 7409180), (20, 4075049), (22, 3704590), (44, 1852295), (55, 1481836), (110, 740918), (127, 641740), (220, 370459), (254, 320870), (508, 160435), (635, 128348), (1270, 64174), (1397, 58340), (2540, 32087), (2794, 29170), (2917, 27940), (5588, 14585), (5834, 13970), (6985, 11668)]