18261584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 41902080

約数和(自身を除く): 23640496

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 43, 44, 76, 86, 88, 127, 152, 172, 176, 209, 254, 304, 344, 418, 473, 508, 688, 817, 836, 946, 1016, 1397, 1634, 1672, 1892, 2032, 2413, 2794, 3268, 3344, 3784, 4826, 5461, 5588, 6536, 7568, 8987, 9652, 10922, 11176, 13072, 17974, 19304, 21844, 22352, 26543, 35948, 38608, 43688, 53086, 60071, 71896, 87376, 103759, 106172, 120142, 143792, 207518, 212344, 240284, 415036, 424688, 480568, 830072, 961136, 1141349, 1660144, 2282698, 4565396, 9130792, 18261584]

約数ペア:

[(1, 18261584), (2, 9130792), (4, 4565396), (8, 2282698), (11, 1660144), (16, 1141349), (19, 961136), (22, 830072), (38, 480568), (43, 424688), (44, 415036), (76, 240284), (86, 212344), (88, 207518), (127, 143792), (152, 120142), (172, 106172), (176, 103759), (209, 87376), (254, 71896), (304, 60071), (344, 53086), (418, 43688), (473, 38608), (508, 35948), (688, 26543), (817, 22352), (836, 21844), (946, 19304), (1016, 17974), (1397, 13072), (1634, 11176), (1672, 10922), (1892, 9652), (2032, 8987), (2413, 7568), (2794, 6536), (3268, 5588), (3344, 5461), (3784, 4826)]