20380040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17569}}^1$

素因数の和:17609

約数の個数: 32

約数和(自身を含む): 47439000

約数和(自身を除く): 27058960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17569, 35138, 70276, 87845, 140552, 175690, 351380, 509501, 702760, 1019002, 2038004, 2547505, 4076008, 5095010, 10190020, 20380040]

約数ペア:

[(1, 20380040), (2, 10190020), (4, 5095010), (5, 4076008), (8, 2547505), (10, 2038004), (20, 1019002), (29, 702760), (40, 509501), (58, 351380), (116, 175690), (145, 140552), (232, 87845), (290, 70276), (580, 35138), (1160, 17569)]