20181208460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1549}}^1\times {\mathrm{3209}}^1$

素因数の和:4803

約数の個数: 96

約数和(自身を含む): 50153040000

約数和(自身を除く): 29971831540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 1549, 2030, 3098, 3209, 4060, 6196, 6418, 7745, 10843, 12836, 15490, 16045, 21686, 22463, 30980, 32090, 43372, 44921, 44926, 54215, 64180, 89842, 89852, 93061, 108430, 112315, 179684, 186122, 216860, 224605, 224630, 314447, 372244, 449210, 449260, 465305, 628894, 651427, 898420, 930610, 1257788, 1302854, 1572235, 1861220, 2605708, 3144470, 3257135, 4970741, 6288940, 6514270, 9941482, 13028540, 19882964, 24853705, 34795187, 49707410, 69590374, 99414820, 139180748, 144151489, 173975935, 288302978, 347951870, 576605956, 695903740, 720757445, 1009060423, 1441514890, 2018120846, 2883029780, 4036241692, 5045302115, 10090604230, 20181208460]

約数ペア:

[(1, 20181208460), (2, 10090604230), (4, 5045302115), (5, 4036241692), (7, 2883029780), (10, 2018120846), (14, 1441514890), (20, 1009060423), (28, 720757445), (29, 695903740), (35, 576605956), (58, 347951870), (70, 288302978), (116, 173975935), (140, 144151489), (145, 139180748), (203, 99414820), (290, 69590374), (406, 49707410), (580, 34795187), (812, 24853705), (1015, 19882964), (1549, 13028540), (2030, 9941482), (3098, 6514270), (3209, 6288940), (4060, 4970741), (6196, 3257135), (6418, 3144470), (7745, 2605708), (10843, 1861220), (12836, 1572235), (15490, 1302854), (16045, 1257788), (21686, 930610), (22463, 898420), (30980, 651427), (32090, 628894), (43372, 465305), (44921, 449260), (44926, 449210), (54215, 372244), (64180, 314447), (89842, 224630), (89852, 224605), (93061, 216860), (108430, 186122), (112315, 179684)]