20475661780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1049}}^1\times {\mathrm{139423}}^1$

素因数の和:140488

約数の個数: 48

約数和(自身を含む): 49188787200

約数和(自身を除く): 28713125420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1049, 2098, 4196, 5245, 7343, 10490, 14686, 20980, 29372, 36715, 73430, 139423, 146860, 278846, 557692, 697115, 975961, 1394230, 1951922, 2788460, 3903844, 4879805, 9759610, 19519220, 146254727, 292509454, 585018908, 731273635, 1023783089, 1462547270, 2047566178, 2925094540, 4095132356, 5118915445, 10237830890, 20475661780]

約数ペア:

[(1, 20475661780), (2, 10237830890), (4, 5118915445), (5, 4095132356), (7, 2925094540), (10, 2047566178), (14, 1462547270), (20, 1023783089), (28, 731273635), (35, 585018908), (70, 292509454), (140, 146254727), (1049, 19519220), (2098, 9759610), (4196, 4879805), (5245, 3903844), (7343, 2788460), (10490, 1951922), (14686, 1394230), (20980, 975961), (29372, 697115), (36715, 557692), (73430, 278846), (139423, 146860)]