28289800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 83119680

約数和(自身を除く): 54829880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 121, 140, 154, 167, 175, 200, 220, 242, 275, 280, 308, 334, 350, 385, 440, 484, 550, 605, 616, 668, 700, 770, 835, 847, 968, 1100, 1169, 1210, 1336, 1400, 1540, 1670, 1694, 1837, 1925, 2200, 2338, 2420, 3025, 3080, 3340, 3388, 3674, 3850, 4175, 4235, 4676, 4840, 5845, 6050, 6680, 6776, 7348, 7700, 8350, 8470, 9185, 9352, 11690, 12100, 12859, 14696, 15400, 16700, 16940, 18370, 20207, 21175, 23380, 24200, 25718, 29225, 33400, 33880, 36740, 40414, 42350, 45925, 46760, 51436, 58450, 64295, 73480, 80828, 84700, 91850, 101035, 102872, 116900, 128590, 141449, 161656, 169400, 183700, 202070, 233800, 257180, 282898, 321475, 367400, 404140, 505175, 514360, 565796, 642950, 707245, 808280, 1010350, 1131592, 1285900, 1414490, 2020700, 2571800, 2828980, 3536225, 4041400, 5657960, 7072450, 14144900, 28289800]

約数ペア:

[(1, 28289800), (2, 14144900), (4, 7072450), (5, 5657960), (7, 4041400), (8, 3536225), (10, 2828980), (11, 2571800), (14, 2020700), (20, 1414490), (22, 1285900), (25, 1131592), (28, 1010350), (35, 808280), (40, 707245), (44, 642950), (50, 565796), (55, 514360), (56, 505175), (70, 404140), (77, 367400), (88, 321475), (100, 282898), (110, 257180), (121, 233800), (140, 202070), (154, 183700), (167, 169400), (175, 161656), (200, 141449), (220, 128590), (242, 116900), (275, 102872), (280, 101035), (308, 91850), (334, 84700), (350, 80828), (385, 73480), (440, 64295), (484, 58450), (550, 51436), (605, 46760), (616, 45925), (668, 42350), (700, 40414), (770, 36740), (835, 33880), (847, 33400), (968, 29225), (1100, 25718), (1169, 24200), (1210, 23380), (1336, 21175), (1400, 20207), (1540, 18370), (1670, 16940), (1694, 16700), (1837, 15400), (1925, 14696), (2200, 12859), (2338, 12100), (2420, 11690), (3025, 9352), (3080, 9185), (3340, 8470), (3388, 8350), (3674, 7700), (3850, 7348), (4175, 6776), (4235, 6680), (4676, 6050), (4840, 5845)]