72190020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{171881}}^1$

素因数の和:171900

約数の個数: 48

約数和(自身を含む): 231009408

約数和(自身を除く): 158819388

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, 171881, 343762, 515643, 687524, 859405, 1031286, 1203167, 1718810, 2062572, 2406334, 2578215, 3437620, 3609501, 4812668, 5156430, 6015835, 7219002, 10312860, 12031670, 14438004, 18047505, 24063340, 36095010, 72190020]

約数ペア:

[(1, 72190020), (2, 36095010), (3, 24063340), (4, 18047505), (5, 14438004), (6, 12031670), (7, 10312860), (10, 7219002), (12, 6015835), (14, 5156430), (15, 4812668), (20, 3609501), (21, 3437620), (28, 2578215), (30, 2406334), (35, 2062572), (42, 1718810), (60, 1203167), (70, 1031286), (84, 859405), (105, 687524), (140, 515643), (210, 343762), (420, 171881)]