20932780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 52799040

約数和(自身を除く): 31866260

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 29, 34, 44, 55, 58, 68, 85, 110, 116, 145, 170, 187, 193, 220, 290, 319, 340, 374, 386, 493, 580, 638, 748, 772, 935, 965, 986, 1276, 1595, 1870, 1930, 1972, 2123, 2465, 3190, 3281, 3740, 3860, 4246, 4930, 5423, 5597, 6380, 6562, 8492, 9860, 10615, 10846, 11194, 13124, 16405, 21230, 21692, 22388, 27115, 27985, 32810, 36091, 42460, 54230, 55970, 61567, 65620, 72182, 95149, 108460, 111940, 123134, 144364, 180455, 190298, 246268, 307835, 360910, 380596, 475745, 615670, 721820, 951490, 1046639, 1231340, 1902980, 2093278, 4186556, 5233195, 10466390, 20932780]

約数ペア:

[(1, 20932780), (2, 10466390), (4, 5233195), (5, 4186556), (10, 2093278), (11, 1902980), (17, 1231340), (20, 1046639), (22, 951490), (29, 721820), (34, 615670), (44, 475745), (55, 380596), (58, 360910), (68, 307835), (85, 246268), (110, 190298), (116, 180455), (145, 144364), (170, 123134), (187, 111940), (193, 108460), (220, 95149), (290, 72182), (319, 65620), (340, 61567), (374, 55970), (386, 54230), (493, 42460), (580, 36091), (638, 32810), (748, 27985), (772, 27115), (935, 22388), (965, 21692), (986, 21230), (1276, 16405), (1595, 13124), (1870, 11194), (1930, 10846), (1972, 10615), (2123, 9860), (2465, 8492), (3190, 6562), (3281, 6380), (3740, 5597), (3860, 5423), (4246, 4930)]