72881560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42373}}^1$

素因数の和:42427

約数の個数: 32

約数和(自身を含む): 167801040

約数和(自身を除く): 94919480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 42373, 84746, 169492, 211865, 338984, 423730, 847460, 1694920, 1822039, 3644078, 7288156, 9110195, 14576312, 18220390, 36440780, 72881560]

約数ペア:

[(1, 72881560), (2, 36440780), (4, 18220390), (5, 14576312), (8, 9110195), (10, 7288156), (20, 3644078), (40, 1822039), (43, 1694920), (86, 847460), (172, 423730), (215, 338984), (344, 211865), (430, 169492), (860, 84746), (1720, 42373)]