7321520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1289}}^1$

素因数の和:1373

約数の個数: 40

約数和(自身を含む): 17275680

約数和(自身を除く): 9954160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1289, 1420, 2578, 2840, 5156, 5680, 6445, 10312, 12890, 20624, 25780, 51560, 91519, 103120, 183038, 366076, 457595, 732152, 915190, 1464304, 1830380, 3660760, 7321520]

約数ペア:

[(1, 7321520), (2, 3660760), (4, 1830380), (5, 1464304), (8, 915190), (10, 732152), (16, 457595), (20, 366076), (40, 183038), (71, 103120), (80, 91519), (142, 51560), (284, 25780), (355, 20624), (568, 12890), (710, 10312), (1136, 6445), (1289, 5680), (1420, 5156), (2578, 2840)]