2705960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1109}}^1$

素因数の和:1181

約数の個数: 32

約数和(自身を含む): 6193800

約数和(自身を除く): 3487840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1109, 1220, 2218, 2440, 4436, 5545, 8872, 11090, 22180, 44360, 67649, 135298, 270596, 338245, 541192, 676490, 1352980, 2705960]

約数ペア:

[(1, 2705960), (2, 1352980), (4, 676490), (5, 541192), (8, 338245), (10, 270596), (20, 135298), (40, 67649), (61, 44360), (122, 22180), (244, 11090), (305, 8872), (488, 5545), (610, 4436), (1109, 2440), (1220, 2218)]