128532978

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2389}}^1$

素因数の和:2472

約数の個数: 72

約数和(自身を含む): 329404140

約数和(自身を除く): 200871162

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 61, 63, 98, 122, 126, 147, 183, 294, 366, 427, 441, 549, 854, 882, 1098, 1281, 2389, 2562, 2989, 3843, 4778, 5978, 7167, 7686, 8967, 14334, 16723, 17934, 21501, 26901, 33446, 43002, 50169, 53802, 100338, 117061, 145729, 150507, 234122, 291458, 301014, 351183, 437187, 702366, 874374, 1020103, 1053549, 1311561, 2040206, 2107098, 2623122, 3060309, 6120618, 7140721, 9180927, 14281442, 18361854, 21422163, 42844326, 64266489, 128532978]

約数ペア:

[(1, 128532978), (2, 64266489), (3, 42844326), (6, 21422163), (7, 18361854), (9, 14281442), (14, 9180927), (18, 7140721), (21, 6120618), (42, 3060309), (49, 2623122), (61, 2107098), (63, 2040206), (98, 1311561), (122, 1053549), (126, 1020103), (147, 874374), (183, 702366), (294, 437187), (366, 351183), (427, 301014), (441, 291458), (549, 234122), (854, 150507), (882, 145729), (1098, 117061), (1281, 100338), (2389, 53802), (2562, 50169), (2989, 43002), (3843, 33446), (4778, 26901), (5978, 21501), (7167, 17934), (7686, 16723), (8967, 14334)]