138607888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 294624000

約数和(自身を除く): 156016112

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 89, 94, 109, 152, 178, 188, 218, 304, 356, 376, 436, 712, 752, 872, 893, 1424, 1691, 1744, 1786, 2071, 3382, 3572, 4142, 4183, 5123, 6764, 7144, 8284, 8366, 9701, 10246, 13528, 14288, 16568, 16732, 19402, 20492, 27056, 33136, 33464, 38804, 40984, 66928, 77608, 79477, 81968, 97337, 155216, 158954, 184319, 194674, 317908, 368638, 389348, 455947, 635816, 737276, 778696, 911894, 1271632, 1474552, 1557392, 1823788, 2949104, 3647576, 7295152, 8662993, 17325986, 34651972, 69303944, 138607888]

約数ペア:

[(1, 138607888), (2, 69303944), (4, 34651972), (8, 17325986), (16, 8662993), (19, 7295152), (38, 3647576), (47, 2949104), (76, 1823788), (89, 1557392), (94, 1474552), (109, 1271632), (152, 911894), (178, 778696), (188, 737276), (218, 635816), (304, 455947), (356, 389348), (376, 368638), (436, 317908), (712, 194674), (752, 184319), (872, 158954), (893, 155216), (1424, 97337), (1691, 81968), (1744, 79477), (1786, 77608), (2071, 66928), (3382, 40984), (3572, 38804), (4142, 33464), (4183, 33136), (5123, 27056), (6764, 20492), (7144, 19402), (8284, 16732), (8366, 16568), (9701, 14288), (10246, 13528)]