7225720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4201}}^1$

素因数の和:4255

約数の個数: 32

約数和(自身を含む): 16639920

約数和(自身を除く): 9414200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4201, 8402, 16804, 21005, 33608, 42010, 84020, 168040, 180643, 361286, 722572, 903215, 1445144, 1806430, 3612860, 7225720]

約数ペア:

[(1, 7225720), (2, 3612860), (4, 1806430), (5, 1445144), (8, 903215), (10, 722572), (20, 361286), (40, 180643), (43, 168040), (86, 84020), (172, 42010), (215, 33608), (344, 21005), (430, 16804), (860, 8402), (1720, 4201)]