7919050020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18854881}}^1$

素因数の和:18854900

約数の個数: 48

約数和(自身を含む): 25340961408

約数和(自身を除く): 17421911388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18854881, 37709762, 56564643, 75419524, 94274405, 113129286, 131984167, 188548810, 226258572, 263968334, 282823215, 377097620, 395952501, 527936668, 565646430, 659920835, 791905002, 1131292860, 1319841670, 1583810004, 1979762505, 2639683340, 3959525010, 7919050020]

約数ペア:

[(1, 7919050020), (2, 3959525010), (3, 2639683340), (4, 1979762505), (5, 1583810004), (6, 1319841670), (7, 1131292860), (10, 791905002), (12, 659920835), (14, 565646430), (15, 527936668), (20, 395952501), (21, 377097620), (28, 282823215), (30, 263968334), (35, 226258572), (42, 188548810), (60, 131984167), (70, 113129286), (84, 94274405), (105, 75419524), (140, 56564643), (210, 37709762), (420, 18854881)]