978184060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{998147}}^1$

素因数の和:998170

約数の個数: 36

約数和(自身を含む): 2389566312

約数和(自身を除く): 1411382252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 998147, 1996294, 3992588, 4990735, 6987029, 9981470, 13974058, 19962940, 27948116, 34935145, 48909203, 69870290, 97818406, 139740580, 195636812, 244546015, 489092030, 978184060]

約数ペア:

[(1, 978184060), (2, 489092030), (4, 244546015), (5, 195636812), (7, 139740580), (10, 97818406), (14, 69870290), (20, 48909203), (28, 34935145), (35, 27948116), (49, 19962940), (70, 13974058), (98, 9981470), (140, 6987029), (196, 4990735), (245, 3992588), (490, 1996294), (980, 998147)]