54721880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 128429280

約数和(自身を除く): 73707400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 164, 205, 244, 305, 328, 410, 488, 547, 610, 820, 1094, 1220, 1640, 2188, 2440, 2501, 2735, 4376, 5002, 5470, 10004, 10940, 12505, 20008, 21880, 22427, 25010, 33367, 44854, 50020, 66734, 89708, 100040, 112135, 133468, 166835, 179416, 224270, 266936, 333670, 448540, 667340, 897080, 1334680, 1368047, 2736094, 5472188, 6840235, 10944376, 13680470, 27360940, 54721880]

約数ペア:

[(1, 54721880), (2, 27360940), (4, 13680470), (5, 10944376), (8, 6840235), (10, 5472188), (20, 2736094), (40, 1368047), (41, 1334680), (61, 897080), (82, 667340), (122, 448540), (164, 333670), (205, 266936), (244, 224270), (305, 179416), (328, 166835), (410, 133468), (488, 112135), (547, 100040), (610, 89708), (820, 66734), (1094, 50020), (1220, 44854), (1640, 33367), (2188, 25010), (2440, 22427), (2501, 21880), (2735, 20008), (4376, 12505), (5002, 10940), (5470, 10004)]