18391072

素因数分解:

$2^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:378

約数の個数: 72

約数和(自身を含む): 43393644

約数和(自身を除く): 25002572

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 74, 98, 112, 148, 196, 224, 259, 296, 317, 392, 518, 592, 634, 784, 1036, 1184, 1268, 1568, 1813, 2072, 2219, 2536, 3626, 4144, 4438, 5072, 7252, 8288, 8876, 10144, 11729, 14504, 15533, 17752, 23458, 29008, 31066, 35504, 46916, 58016, 62132, 71008, 82103, 93832, 124264, 164206, 187664, 248528, 328412, 375328, 497056, 574721, 656824, 1149442, 1313648, 2298884, 2627296, 4597768, 9195536, 18391072]

約数ペア:

[(1, 18391072), (2, 9195536), (4, 4597768), (7, 2627296), (8, 2298884), (14, 1313648), (16, 1149442), (28, 656824), (32, 574721), (37, 497056), (49, 375328), (56, 328412), (74, 248528), (98, 187664), (112, 164206), (148, 124264), (196, 93832), (224, 82103), (259, 71008), (296, 62132), (317, 58016), (392, 46916), (518, 35504), (592, 31066), (634, 29008), (784, 23458), (1036, 17752), (1184, 15533), (1268, 14504), (1568, 11729), (1813, 10144), (2072, 8876), (2219, 8288), (2536, 7252), (3626, 5072), (4144, 4438)]