28787640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:861

約数の個数: 128

約数和(自身を含む): 101122560

約数和(自身を除く): 72334920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 602, 645, 797, 840, 860, 903, 1032, 1204, 1290, 1505, 1594, 1720, 1806, 2391, 2408, 2580, 3010, 3188, 3612, 3985, 4515, 4782, 5160, 5579, 6020, 6376, 7224, 7970, 9030, 9564, 11158, 11955, 12040, 15940, 16737, 18060, 19128, 22316, 23910, 27895, 31880, 33474, 34271, 36120, 44632, 47820, 55790, 66948, 68542, 83685, 95640, 102813, 111580, 133896, 137084, 167370, 171355, 205626, 223160, 239897, 274168, 334740, 342710, 411252, 479794, 514065, 669480, 685420, 719691, 822504, 959588, 1028130, 1199485, 1370840, 1439382, 1919176, 2056260, 2398970, 2878764, 3598455, 4112520, 4797940, 5757528, 7196910, 9595880, 14393820, 28787640]

約数ペア:

[(1, 28787640), (2, 14393820), (3, 9595880), (4, 7196910), (5, 5757528), (6, 4797940), (7, 4112520), (8, 3598455), (10, 2878764), (12, 2398970), (14, 2056260), (15, 1919176), (20, 1439382), (21, 1370840), (24, 1199485), (28, 1028130), (30, 959588), (35, 822504), (40, 719691), (42, 685420), (43, 669480), (56, 514065), (60, 479794), (70, 411252), (84, 342710), (86, 334740), (105, 274168), (120, 239897), (129, 223160), (140, 205626), (168, 171355), (172, 167370), (210, 137084), (215, 133896), (258, 111580), (280, 102813), (301, 95640), (344, 83685), (420, 68542), (430, 66948), (516, 55790), (602, 47820), (645, 44632), (797, 36120), (840, 34271), (860, 33474), (903, 31880), (1032, 27895), (1204, 23910), (1290, 22316), (1505, 19128), (1594, 18060), (1720, 16737), (1806, 15940), (2391, 12040), (2408, 11955), (2580, 11158), (3010, 9564), (3188, 9030), (3612, 7970), (3985, 7224), (4515, 6376), (4782, 6020), (5160, 5579)]