7216280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{809}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 16329600

約数和(自身を除く): 9113320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 809, 892, 1115, 1618, 1784, 2230, 3236, 4045, 4460, 6472, 8090, 8920, 16180, 32360, 180407, 360814, 721628, 902035, 1443256, 1804070, 3608140, 7216280]

約数ペア:

[(1, 7216280), (2, 3608140), (4, 1804070), (5, 1443256), (8, 902035), (10, 721628), (20, 360814), (40, 180407), (223, 32360), (446, 16180), (809, 8920), (892, 8090), (1115, 6472), (1618, 4460), (1784, 4045), (2230, 3236)]