231567778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 412812288

約数和(自身を除く): 181244510

約数列:

[1, 2, 13, 17, 26, 34, 47, 71, 94, 142, 157, 221, 314, 442, 611, 799, 923, 1207, 1222, 1598, 1846, 2041, 2414, 2669, 3337, 4082, 5338, 6674, 7379, 10387, 11147, 14758, 15691, 20774, 22294, 31382, 34697, 43381, 56729, 69394, 86762, 95927, 113458, 125443, 144911, 189499, 191854, 250886, 289822, 378998, 523909, 737477, 1047818, 1474954, 1630759, 2463487, 3261518, 4926974, 6810817, 8906453, 13621634, 17812906, 115783889, 231567778]

約数ペア:

[(1, 231567778), (2, 115783889), (13, 17812906), (17, 13621634), (26, 8906453), (34, 6810817), (47, 4926974), (71, 3261518), (94, 2463487), (142, 1630759), (157, 1474954), (221, 1047818), (314, 737477), (442, 523909), (611, 378998), (799, 289822), (923, 250886), (1207, 191854), (1222, 189499), (1598, 144911), (1846, 125443), (2041, 113458), (2414, 95927), (2669, 86762), (3337, 69394), (4082, 56729), (5338, 43381), (6674, 34697), (7379, 31382), (10387, 22294), (11147, 20774), (14758, 15691)]