201970020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{480881}}^1$

素因数の和:480900

約数の個数: 48

約数和(自身を含む): 646305408

約数和(自身を除く): 444335388

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, 480881, 961762, 1442643, 1923524, 2404405, 2885286, 3366167, 4808810, 5770572, 6732334, 7213215, 9617620, 10098501, 13464668, 14426430, 16830835, 20197002, 28852860, 33661670, 40394004, 50492505, 67323340, 100985010, 201970020]

約数ペア:

[(1, 201970020), (2, 100985010), (3, 67323340), (4, 50492505), (5, 40394004), (6, 33661670), (7, 28852860), (10, 20197002), (12, 16830835), (14, 14426430), (15, 13464668), (20, 10098501), (21, 9617620), (28, 7213215), (30, 6732334), (35, 5770572), (42, 4808810), (60, 3366167), (70, 2885286), (84, 2404405), (105, 1923524), (140, 1442643), (210, 961762), (420, 480881)]