1989381944

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{318403}}^1$

素因数の和:318491

約数の個数: 32

約数和(自身を含む): 4126515840

約数和(自身を除く): 2137133896

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 6248, 318403, 636806, 1273612, 2547224, 3502433, 7004866, 14009732, 22606613, 28019464, 45213226, 90426452, 180852904, 248672743, 497345486, 994690972, 1989381944]

約数ペア:

[(1, 1989381944), (2, 994690972), (4, 497345486), (8, 248672743), (11, 180852904), (22, 90426452), (44, 45213226), (71, 28019464), (88, 22606613), (142, 14009732), (284, 7004866), (568, 3502433), (781, 2547224), (1562, 1273612), (3124, 636806), (6248, 318403)]