28768376

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 68006400

約数和(自身を除く): 39238024

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 86, 91, 104, 172, 182, 301, 344, 364, 559, 602, 728, 919, 1118, 1204, 1838, 2236, 2408, 3676, 3913, 4472, 6433, 7352, 7826, 11947, 12866, 15652, 23894, 25732, 31304, 39517, 47788, 51464, 79034, 83629, 95576, 158068, 167258, 276619, 316136, 334516, 513721, 553238, 669032, 1027442, 1106476, 2054884, 2212952, 3596047, 4109768, 7192094, 14384188, 28768376]

約数ペア:

[(1, 28768376), (2, 14384188), (4, 7192094), (7, 4109768), (8, 3596047), (13, 2212952), (14, 2054884), (26, 1106476), (28, 1027442), (43, 669032), (52, 553238), (56, 513721), (86, 334516), (91, 316136), (104, 276619), (172, 167258), (182, 158068), (301, 95576), (344, 83629), (364, 79034), (559, 51464), (602, 47788), (728, 39517), (919, 31304), (1118, 25732), (1204, 23894), (1838, 15652), (2236, 12866), (2408, 11947), (3676, 7826), (3913, 7352), (4472, 6433)]