28664980

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{3109}}^1$

素因数の和:3579

約数の個数: 24

約数和(自身を含む): 60346440

約数和(自身を除く): 31681460

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 3109, 4610, 6218, 9220, 12436, 15545, 31090, 62180, 1433249, 2866498, 5732996, 7166245, 14332490, 28664980]

約数ペア:

[(1, 28664980), (2, 14332490), (4, 7166245), (5, 5732996), (10, 2866498), (20, 1433249), (461, 62180), (922, 31090), (1844, 15545), (2305, 12436), (3109, 9220), (4610, 6218)]