1311998540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1772971}}^1$

素因数の和:1773017

約数の個数: 24

約数和(自身を含む): 2829663312

約数和(自身を除く): 1517664772

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 1772971, 3545942, 7091884, 8864855, 17729710, 35459420, 65599927, 131199854, 262399708, 327999635, 655999270, 1311998540]

約数ペア:

[(1, 1311998540), (2, 655999270), (4, 327999635), (5, 262399708), (10, 131199854), (20, 65599927), (37, 35459420), (74, 17729710), (148, 8864855), (185, 7091884), (370, 3545942), (740, 1772971)]