1491447020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{42443}}^1$

素因数の和:42710

約数の個数: 48

約数和(自身を含む): 3593818368

約数和(自身を除く): 2102371348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 251, 502, 1004, 1255, 1757, 2510, 3514, 5020, 7028, 8785, 17570, 35140, 42443, 84886, 169772, 212215, 297101, 424430, 594202, 848860, 1188404, 1485505, 2971010, 5942020, 10653193, 21306386, 42612772, 53265965, 74572351, 106531930, 149144702, 213063860, 298289404, 372861755, 745723510, 1491447020]

約数ペア:

[(1, 1491447020), (2, 745723510), (4, 372861755), (5, 298289404), (7, 213063860), (10, 149144702), (14, 106531930), (20, 74572351), (28, 53265965), (35, 42612772), (70, 21306386), (140, 10653193), (251, 5942020), (502, 2971010), (1004, 1485505), (1255, 1188404), (1757, 848860), (2510, 594202), (3514, 424430), (5020, 297101), (7028, 212215), (8785, 169772), (17570, 84886), (35140, 42443)]