8921840

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:729

約数の個数: 40

約数和(自身を含む): 20876640

約数和(自身を除く): 11954800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 487, 916, 974, 1145, 1832, 1948, 2290, 2435, 3664, 3896, 4580, 4870, 7792, 9160, 9740, 18320, 19480, 38960, 111523, 223046, 446092, 557615, 892184, 1115230, 1784368, 2230460, 4460920, 8921840]

約数ペア:

[(1, 8921840), (2, 4460920), (4, 2230460), (5, 1784368), (8, 1115230), (10, 892184), (16, 557615), (20, 446092), (40, 223046), (80, 111523), (229, 38960), (458, 19480), (487, 18320), (916, 9740), (974, 9160), (1145, 7792), (1832, 4870), (1948, 4580), (2290, 3896), (2435, 3664)]