490192780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1580

約数の個数: 144

約数和(自身を含む): 1362090240

約数和(自身を除く): 871897460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 121, 133, 140, 154, 190, 209, 220, 242, 266, 308, 380, 385, 418, 484, 532, 605, 665, 770, 836, 847, 1045, 1210, 1330, 1463, 1523, 1540, 1694, 2090, 2299, 2420, 2660, 2926, 3046, 3388, 4180, 4235, 4598, 5852, 6092, 7315, 7615, 8470, 9196, 10661, 11495, 14630, 15230, 16093, 16753, 16940, 21322, 22990, 28937, 29260, 30460, 32186, 33506, 42644, 45980, 53305, 57874, 64372, 67012, 80465, 83765, 106610, 115748, 117271, 144685, 160930, 167530, 184283, 202559, 213220, 234542, 289370, 318307, 321860, 335060, 368566, 405118, 469084, 578740, 586355, 636614, 737132, 810236, 921415, 1012795, 1172710, 1273228, 1289981, 1591535, 1842830, 2025590, 2228149, 2345420, 2579962, 3183070, 3501377, 3685660, 4051180, 4456298, 5159924, 6366140, 6449905, 7002754, 8912596, 11140745, 12899810, 14005508, 17506885, 22281490, 24509639, 25799620, 35013770, 44562980, 49019278, 70027540, 98038556, 122548195, 245096390, 490192780]

約数ペア:

[(1, 490192780), (2, 245096390), (4, 122548195), (5, 98038556), (7, 70027540), (10, 49019278), (11, 44562980), (14, 35013770), (19, 25799620), (20, 24509639), (22, 22281490), (28, 17506885), (35, 14005508), (38, 12899810), (44, 11140745), (55, 8912596), (70, 7002754), (76, 6449905), (77, 6366140), (95, 5159924), (110, 4456298), (121, 4051180), (133, 3685660), (140, 3501377), (154, 3183070), (190, 2579962), (209, 2345420), (220, 2228149), (242, 2025590), (266, 1842830), (308, 1591535), (380, 1289981), (385, 1273228), (418, 1172710), (484, 1012795), (532, 921415), (605, 810236), (665, 737132), (770, 636614), (836, 586355), (847, 578740), (1045, 469084), (1210, 405118), (1330, 368566), (1463, 335060), (1523, 321860), (1540, 318307), (1694, 289370), (2090, 234542), (2299, 213220), (2420, 202559), (2660, 184283), (2926, 167530), (3046, 160930), (3388, 144685), (4180, 117271), (4235, 115748), (4598, 106610), (5852, 83765), (6092, 80465), (7315, 67012), (7615, 64372), (8470, 57874), (9196, 53305), (10661, 45980), (11495, 42644), (14630, 33506), (15230, 32186), (16093, 30460), (16753, 29260), (16940, 28937), (21322, 22990)]