28991960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31513}}^1$

素因数の和:31547

約数の個数: 32

約数和(自身を含む): 68070240

約数和(自身を除く): 39078280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 31513, 63026, 126052, 157565, 252104, 315130, 630260, 724799, 1260520, 1449598, 2899196, 3623995, 5798392, 7247990, 14495980, 28991960]

約数ペア:

[(1, 28991960), (2, 14495980), (4, 7247990), (5, 5798392), (8, 3623995), (10, 2899196), (20, 1449598), (23, 1260520), (40, 724799), (46, 630260), (92, 315130), (115, 252104), (184, 157565), (230, 126052), (460, 63026), (920, 31513)]