1686740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:89

約数の個数: 72

約数和(自身を含む): 4223016

約数和(自身を除く): 2536276

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 41, 44, 55, 68, 82, 85, 110, 121, 164, 170, 187, 205, 220, 242, 340, 374, 410, 451, 484, 605, 697, 748, 820, 902, 935, 1210, 1394, 1804, 1870, 2057, 2255, 2420, 2788, 3485, 3740, 4114, 4510, 4961, 6970, 7667, 8228, 9020, 9922, 10285, 13940, 15334, 19844, 20570, 24805, 30668, 38335, 41140, 49610, 76670, 84337, 99220, 153340, 168674, 337348, 421685, 843370, 1686740]

約数ペア:

[(1, 1686740), (2, 843370), (4, 421685), (5, 337348), (10, 168674), (11, 153340), (17, 99220), (20, 84337), (22, 76670), (34, 49610), (41, 41140), (44, 38335), (55, 30668), (68, 24805), (82, 20570), (85, 19844), (110, 15334), (121, 13940), (164, 10285), (170, 9922), (187, 9020), (205, 8228), (220, 7667), (242, 6970), (340, 4961), (374, 4510), (410, 4114), (451, 3740), (484, 3485), (605, 2788), (697, 2420), (748, 2255), (820, 2057), (902, 1870), (935, 1804), (1210, 1394)]