51172520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1021}}^1$

素因数の和:1218

約数の個数: 64

約数和(自身を含む): 132451200

約数和(自身を除く): 81278680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 280, 358, 716, 895, 1021, 1253, 1432, 1790, 2042, 2506, 3580, 4084, 5012, 5105, 6265, 7147, 7160, 8168, 10024, 10210, 12530, 14294, 20420, 25060, 28588, 35735, 40840, 50120, 57176, 71470, 142940, 182759, 285880, 365518, 731036, 913795, 1279313, 1462072, 1827590, 2558626, 3655180, 5117252, 6396565, 7310360, 10234504, 12793130, 25586260, 51172520]

約数ペア:

[(1, 51172520), (2, 25586260), (4, 12793130), (5, 10234504), (7, 7310360), (8, 6396565), (10, 5117252), (14, 3655180), (20, 2558626), (28, 1827590), (35, 1462072), (40, 1279313), (56, 913795), (70, 731036), (140, 365518), (179, 285880), (280, 182759), (358, 142940), (716, 71470), (895, 57176), (1021, 50120), (1253, 40840), (1432, 35735), (1790, 28588), (2042, 25060), (2506, 20420), (3580, 14294), (4084, 12530), (5012, 10210), (5105, 10024), (6265, 8168), (7147, 7160)]