126991980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1021}}^1$

素因数の和:1727

約数の個数: 72

約数和(自身を含む): 386144304

約数和(自身を除く): 259152324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 691, 1021, 1382, 2042, 2073, 2764, 3063, 3455, 4084, 4146, 5105, 6126, 6219, 6910, 8292, 9189, 10210, 10365, 12252, 12438, 13820, 15315, 18378, 20420, 20730, 24876, 30630, 31095, 36756, 41460, 45945, 61260, 62190, 91890, 124380, 183780, 705511, 1411022, 2116533, 2822044, 3527555, 4233066, 6349599, 7055110, 8466132, 10582665, 12699198, 14110220, 21165330, 25398396, 31747995, 42330660, 63495990, 126991980]

約数ペア:

[(1, 126991980), (2, 63495990), (3, 42330660), (4, 31747995), (5, 25398396), (6, 21165330), (9, 14110220), (10, 12699198), (12, 10582665), (15, 8466132), (18, 7055110), (20, 6349599), (30, 4233066), (36, 3527555), (45, 2822044), (60, 2116533), (90, 1411022), (180, 705511), (691, 183780), (1021, 124380), (1382, 91890), (2042, 62190), (2073, 61260), (2764, 45945), (3063, 41460), (3455, 36756), (4084, 31095), (4146, 30630), (5105, 24876), (6126, 20730), (6219, 20420), (6910, 18378), (8292, 15315), (9189, 13820), (10210, 12438), (10365, 12252)]