131789310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{491}}^1$

素因数の和:913

約数の個数: 64

約数和(自身を含む): 331568640

約数和(自身を除く): 199779330

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 389, 491, 690, 778, 982, 1167, 1473, 1945, 2334, 2455, 2946, 3890, 4910, 5835, 7365, 8947, 11293, 11670, 14730, 17894, 22586, 26841, 33879, 44735, 53682, 56465, 67758, 89470, 112930, 134205, 169395, 190999, 268410, 338790, 381998, 572997, 954995, 1145994, 1909990, 2864985, 4392977, 5729970, 8785954, 13178931, 21964885, 26357862, 43929770, 65894655, 131789310]

約数ペア:

[(1, 131789310), (2, 65894655), (3, 43929770), (5, 26357862), (6, 21964885), (10, 13178931), (15, 8785954), (23, 5729970), (30, 4392977), (46, 2864985), (69, 1909990), (115, 1145994), (138, 954995), (230, 572997), (345, 381998), (389, 338790), (491, 268410), (690, 190999), (778, 169395), (982, 134205), (1167, 112930), (1473, 89470), (1945, 67758), (2334, 56465), (2455, 53682), (2946, 44735), (3890, 33879), (4910, 26841), (5835, 22586), (7365, 17894), (8947, 14730), (11293, 11670)]