31208980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1117}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 72124416

約数和(自身を除く): 40915436

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 1117, 1270, 1397, 2234, 2540, 2794, 4468, 5585, 5588, 6985, 11170, 12287, 13970, 22340, 24574, 27940, 49148, 61435, 122870, 141859, 245740, 283718, 567436, 709295, 1418590, 1560449, 2837180, 3120898, 6241796, 7802245, 15604490, 31208980]

約数ペア:

[(1, 31208980), (2, 15604490), (4, 7802245), (5, 6241796), (10, 3120898), (11, 2837180), (20, 1560449), (22, 1418590), (44, 709295), (55, 567436), (110, 283718), (127, 245740), (220, 141859), (254, 122870), (508, 61435), (635, 49148), (1117, 27940), (1270, 24574), (1397, 22340), (2234, 13970), (2540, 12287), (2794, 11170), (4468, 6985), (5585, 5588)]