18513220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 46126080

約数和(自身を除く): 27612860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 43, 44, 55, 76, 86, 95, 103, 110, 172, 190, 206, 209, 215, 220, 380, 412, 418, 430, 473, 515, 817, 836, 860, 946, 1030, 1045, 1133, 1634, 1892, 1957, 2060, 2090, 2266, 2365, 3268, 3914, 4085, 4180, 4429, 4532, 4730, 5665, 7828, 8170, 8858, 8987, 9460, 9785, 11330, 16340, 17716, 17974, 19570, 21527, 22145, 22660, 35948, 39140, 43054, 44290, 44935, 48719, 84151, 86108, 88580, 89870, 97438, 107635, 168302, 179740, 194876, 215270, 243595, 336604, 420755, 430540, 487190, 841510, 925661, 974380, 1683020, 1851322, 3702644, 4628305, 9256610, 18513220]

約数ペア:

[(1, 18513220), (2, 9256610), (4, 4628305), (5, 3702644), (10, 1851322), (11, 1683020), (19, 974380), (20, 925661), (22, 841510), (38, 487190), (43, 430540), (44, 420755), (55, 336604), (76, 243595), (86, 215270), (95, 194876), (103, 179740), (110, 168302), (172, 107635), (190, 97438), (206, 89870), (209, 88580), (215, 86108), (220, 84151), (380, 48719), (412, 44935), (418, 44290), (430, 43054), (473, 39140), (515, 35948), (817, 22660), (836, 22145), (860, 21527), (946, 19570), (1030, 17974), (1045, 17716), (1133, 16340), (1634, 11330), (1892, 9785), (1957, 9460), (2060, 8987), (2090, 8858), (2266, 8170), (2365, 7828), (3268, 5665), (3914, 4730), (4085, 4532), (4180, 4429)]