2209520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 5222880

約数和(自身を除く): 3013360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 389, 568, 710, 778, 1136, 1420, 1556, 1945, 2840, 3112, 3890, 5680, 6224, 7780, 15560, 27619, 31120, 55238, 110476, 138095, 220952, 276190, 441904, 552380, 1104760, 2209520]

約数ペア:

[(1, 2209520), (2, 1104760), (4, 552380), (5, 441904), (8, 276190), (10, 220952), (16, 138095), (20, 110476), (40, 55238), (71, 31120), (80, 27619), (142, 15560), (284, 7780), (355, 6224), (389, 5680), (568, 3890), (710, 3112), (778, 2840), (1136, 1945), (1420, 1556)]