31000420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 75841920

約数和(自身を除く): 44841500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 43, 44, 55, 58, 86, 110, 113, 116, 145, 172, 215, 220, 226, 290, 319, 430, 452, 473, 565, 580, 638, 860, 946, 1130, 1243, 1247, 1276, 1595, 1892, 2260, 2365, 2486, 2494, 3190, 3277, 4730, 4859, 4972, 4988, 6215, 6235, 6380, 6554, 9460, 9718, 12430, 12470, 13108, 13717, 16385, 19436, 24295, 24860, 24940, 27434, 32770, 36047, 48590, 53449, 54868, 65540, 68585, 72094, 97180, 106898, 137170, 140911, 144188, 180235, 213796, 267245, 274340, 281822, 360470, 534490, 563644, 704555, 720940, 1068980, 1409110, 1550021, 2818220, 3100042, 6200084, 7750105, 15500210, 31000420]

約数ペア:

[(1, 31000420), (2, 15500210), (4, 7750105), (5, 6200084), (10, 3100042), (11, 2818220), (20, 1550021), (22, 1409110), (29, 1068980), (43, 720940), (44, 704555), (55, 563644), (58, 534490), (86, 360470), (110, 281822), (113, 274340), (116, 267245), (145, 213796), (172, 180235), (215, 144188), (220, 140911), (226, 137170), (290, 106898), (319, 97180), (430, 72094), (452, 68585), (473, 65540), (565, 54868), (580, 53449), (638, 48590), (860, 36047), (946, 32770), (1130, 27434), (1243, 24940), (1247, 24860), (1276, 24295), (1595, 19436), (1892, 16385), (2260, 13717), (2365, 13108), (2486, 12470), (2494, 12430), (3190, 9718), (3277, 9460), (4730, 6554), (4859, 6380), (4972, 6235), (4988, 6215)]