28288360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 38481560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 188, 205, 235, 328, 367, 376, 410, 470, 734, 820, 940, 1468, 1640, 1835, 1880, 1927, 2936, 3670, 3854, 7340, 7708, 9635, 14680, 15047, 15416, 17249, 19270, 30094, 34498, 38540, 60188, 68996, 75235, 77080, 86245, 120376, 137992, 150470, 172490, 300940, 344980, 601880, 689960, 707209, 1414418, 2828836, 3536045, 5657672, 7072090, 14144180, 28288360]

約数ペア:

[(1, 28288360), (2, 14144180), (4, 7072090), (5, 5657672), (8, 3536045), (10, 2828836), (20, 1414418), (40, 707209), (41, 689960), (47, 601880), (82, 344980), (94, 300940), (164, 172490), (188, 150470), (205, 137992), (235, 120376), (328, 86245), (367, 77080), (376, 75235), (410, 68996), (470, 60188), (734, 38540), (820, 34498), (940, 30094), (1468, 19270), (1640, 17249), (1835, 15416), (1880, 15047), (1927, 14680), (2936, 9635), (3670, 7708), (3854, 7340)]