138335320

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{43777}}^1$

素因数の和:43867

約数の個数: 32

約数和(自身を含む): 315201600

約数和(自身を除く): 176866280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 43777, 87554, 175108, 218885, 350216, 437770, 875540, 1751080, 3458383, 6916766, 13833532, 17291915, 27667064, 34583830, 69167660, 138335320]

約数ペア:

[(1, 138335320), (2, 69167660), (4, 34583830), (5, 27667064), (8, 17291915), (10, 13833532), (20, 6916766), (40, 3458383), (79, 1751080), (158, 875540), (316, 437770), (395, 350216), (632, 218885), (790, 175108), (1580, 87554), (3160, 43777)]