28481880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{827}}^1$

素因数の和:889

約数の個数: 128

約数和(自身を含む): 100154880

約数和(自身を除く): 71673000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 492, 574, 615, 820, 827, 840, 861, 984, 1148, 1230, 1435, 1640, 1654, 1722, 2296, 2460, 2481, 2870, 3308, 3444, 4135, 4305, 4920, 4962, 5740, 5789, 6616, 6888, 8270, 8610, 9924, 11480, 11578, 12405, 16540, 17220, 17367, 19848, 23156, 24810, 28945, 33080, 33907, 34440, 34734, 46312, 49620, 57890, 67814, 69468, 86835, 99240, 101721, 115780, 135628, 138936, 169535, 173670, 203442, 231560, 237349, 271256, 339070, 347340, 406884, 474698, 508605, 678140, 694680, 712047, 813768, 949396, 1017210, 1186745, 1356280, 1424094, 1898792, 2034420, 2373490, 2848188, 3560235, 4068840, 4746980, 5696376, 7120470, 9493960, 14240940, 28481880]

約数ペア:

[(1, 28481880), (2, 14240940), (3, 9493960), (4, 7120470), (5, 5696376), (6, 4746980), (7, 4068840), (8, 3560235), (10, 2848188), (12, 2373490), (14, 2034420), (15, 1898792), (20, 1424094), (21, 1356280), (24, 1186745), (28, 1017210), (30, 949396), (35, 813768), (40, 712047), (41, 694680), (42, 678140), (56, 508605), (60, 474698), (70, 406884), (82, 347340), (84, 339070), (105, 271256), (120, 237349), (123, 231560), (140, 203442), (164, 173670), (168, 169535), (205, 138936), (210, 135628), (246, 115780), (280, 101721), (287, 99240), (328, 86835), (410, 69468), (420, 67814), (492, 57890), (574, 49620), (615, 46312), (820, 34734), (827, 34440), (840, 33907), (861, 33080), (984, 28945), (1148, 24810), (1230, 23156), (1435, 19848), (1640, 17367), (1654, 17220), (1722, 16540), (2296, 12405), (2460, 11578), (2481, 11480), (2870, 9924), (3308, 8610), (3444, 8270), (4135, 6888), (4305, 6616), (4920, 5789), (4962, 5740)]