3940840

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1187}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 8981280

約数和(自身を除く): 5040440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1187, 1660, 2374, 3320, 4748, 5935, 9496, 11870, 23740, 47480, 98521, 197042, 394084, 492605, 788168, 985210, 1970420, 3940840]

約数ペア:

[(1, 3940840), (2, 1970420), (4, 985210), (5, 788168), (8, 492605), (10, 394084), (20, 197042), (40, 98521), (83, 47480), (166, 23740), (332, 11870), (415, 9496), (664, 5935), (830, 4748), (1187, 3320), (1660, 2374)]