11981960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4219}}^1$

素因数の和:4301

約数の個数: 32

約数和(自身を含む): 27345600

約数和(自身を除く): 15363640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4219, 8438, 16876, 21095, 33752, 42190, 84380, 168760, 299549, 599098, 1198196, 1497745, 2396392, 2995490, 5990980, 11981960]

約数ペア:

[(1, 11981960), (2, 5990980), (4, 2995490), (5, 2396392), (8, 1497745), (10, 1198196), (20, 599098), (40, 299549), (71, 168760), (142, 84380), (284, 42190), (355, 33752), (568, 21095), (710, 16876), (1420, 8438), (2840, 4219)]