278344998

素因数分解:

$2^1\times 3^4\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:463

約数の個数: 80

約数和(自身を含む): 643991040

約数和(自身を除く): 365646042

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 81, 94, 139, 141, 162, 263, 278, 282, 417, 423, 526, 789, 834, 846, 1251, 1269, 1578, 2367, 2502, 2538, 3753, 3807, 4734, 6533, 7101, 7506, 7614, 11259, 12361, 13066, 14202, 19599, 21303, 22518, 24722, 36557, 37083, 39198, 42606, 58797, 73114, 74166, 109671, 111249, 117594, 176391, 219342, 222498, 329013, 333747, 352782, 529173, 658026, 667494, 987039, 1001241, 1058346, 1718179, 1974078, 2002482, 2961117, 3436358, 5154537, 5922234, 10309074, 15463611, 30927222, 46390833, 92781666, 139172499, 278344998]

約数ペア:

[(1, 278344998), (2, 139172499), (3, 92781666), (6, 46390833), (9, 30927222), (18, 15463611), (27, 10309074), (47, 5922234), (54, 5154537), (81, 3436358), (94, 2961117), (139, 2002482), (141, 1974078), (162, 1718179), (263, 1058346), (278, 1001241), (282, 987039), (417, 667494), (423, 658026), (526, 529173), (789, 352782), (834, 333747), (846, 329013), (1251, 222498), (1269, 219342), (1578, 176391), (2367, 117594), (2502, 111249), (2538, 109671), (3753, 74166), (3807, 73114), (4734, 58797), (6533, 42606), (7101, 39198), (7506, 37083), (7614, 36557), (11259, 24722), (12361, 22518), (13066, 21303), (14202, 19599)]