19866140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3461}}^1$

素因数の和:3518

約数の個数: 48

約数和(自身を含む): 48855744

約数和(自身を除く): 28989604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3461, 5740, 6922, 13844, 17305, 24227, 34610, 48454, 69220, 96908, 121135, 141901, 242270, 283802, 484540, 567604, 709505, 993307, 1419010, 1986614, 2838020, 3973228, 4966535, 9933070, 19866140]

約数ペア:

[(1, 19866140), (2, 9933070), (4, 4966535), (5, 3973228), (7, 2838020), (10, 1986614), (14, 1419010), (20, 993307), (28, 709505), (35, 567604), (41, 484540), (70, 283802), (82, 242270), (140, 141901), (164, 121135), (205, 96908), (287, 69220), (410, 48454), (574, 34610), (820, 24227), (1148, 17305), (1435, 13844), (2870, 6922), (3461, 5740)]