81622460

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{18301}}^1$

素因数の和:18533

約数の個数: 24

約数和(自身を含む): 172185216

約数和(自身を除く): 90562756

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 18301, 36602, 73204, 91505, 183010, 366020, 4081123, 8162246, 16324492, 20405615, 40811230, 81622460]

約数ペア:

[(1, 81622460), (2, 40811230), (4, 20405615), (5, 16324492), (10, 8162246), (20, 4081123), (223, 366020), (446, 183010), (892, 91505), (1115, 73204), (2230, 36602), (4460, 18301)]