18824740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2087}}^1$

素因数の和:2148

約数の個数: 48

約数和(自身を含む): 44198784

約数和(自身を除く): 25374044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2087, 2255, 4174, 4510, 8348, 9020, 10435, 20870, 22957, 41740, 45914, 85567, 91828, 114785, 171134, 229570, 342268, 427835, 459140, 855670, 941237, 1711340, 1882474, 3764948, 4706185, 9412370, 18824740]

約数ペア:

[(1, 18824740), (2, 9412370), (4, 4706185), (5, 3764948), (10, 1882474), (11, 1711340), (20, 941237), (22, 855670), (41, 459140), (44, 427835), (55, 342268), (82, 229570), (110, 171134), (164, 114785), (205, 91828), (220, 85567), (410, 45914), (451, 41740), (820, 22957), (902, 20870), (1804, 10435), (2087, 9020), (2255, 8348), (4174, 4510)]