208721844

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1$

素因数の和:989

約数の個数: 72

約数和(自身を含む): 542112480

約数和(自身を除く): 333390636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 139, 159, 212, 278, 318, 417, 477, 556, 636, 787, 834, 954, 1251, 1574, 1668, 1908, 2361, 2502, 3148, 4722, 5004, 7083, 7367, 9444, 14166, 14734, 22101, 28332, 29468, 41711, 44202, 66303, 83422, 88404, 109393, 125133, 132606, 166844, 218786, 250266, 265212, 328179, 375399, 437572, 500532, 656358, 750798, 984537, 1312716, 1501596, 1969074, 3938148, 5797829, 11595658, 17393487, 23191316, 34786974, 52180461, 69573948, 104360922, 208721844]

約数ペア:

[(1, 208721844), (2, 104360922), (3, 69573948), (4, 52180461), (6, 34786974), (9, 23191316), (12, 17393487), (18, 11595658), (36, 5797829), (53, 3938148), (106, 1969074), (139, 1501596), (159, 1312716), (212, 984537), (278, 750798), (318, 656358), (417, 500532), (477, 437572), (556, 375399), (636, 328179), (787, 265212), (834, 250266), (954, 218786), (1251, 166844), (1574, 132606), (1668, 125133), (1908, 109393), (2361, 88404), (2502, 83422), (3148, 66303), (4722, 44202), (5004, 41711), (7083, 29468), (7367, 28332), (9444, 22101), (14166, 14734)]