638983980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{3549911}}^1$

素因数の和:3549926

約数の個数: 36

約数和(自身を含む): 1938251952

約数和(自身を除く): 1299267972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 3549911, 7099822, 10649733, 14199644, 17749555, 21299466, 31949199, 35499110, 42598932, 53248665, 63898398, 70998220, 106497330, 127796796, 159745995, 212994660, 319491990, 638983980]

約数ペア:

[(1, 638983980), (2, 319491990), (3, 212994660), (4, 159745995), (5, 127796796), (6, 106497330), (9, 70998220), (10, 63898398), (12, 53248665), (15, 42598932), (18, 35499110), (20, 31949199), (30, 21299466), (36, 17749555), (45, 14199644), (60, 10649733), (90, 7099822), (180, 3549911)]