1888573640

素因数分解:

$2^3\times 5^1\times {\mathrm{1669}}^1\times {\mathrm{28289}}^1$

素因数の和:29969

約数の個数: 32

約数和(自身を含む): 4251987000

約数和(自身を除く): 2363413360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1669, 3338, 6676, 8345, 13352, 16690, 28289, 33380, 56578, 66760, 113156, 141445, 226312, 282890, 565780, 1131560, 47214341, 94428682, 188857364, 236071705, 377714728, 472143410, 944286820, 1888573640]

約数ペア:

[(1, 1888573640), (2, 944286820), (4, 472143410), (5, 377714728), (8, 236071705), (10, 188857364), (20, 94428682), (40, 47214341), (1669, 1131560), (3338, 565780), (6676, 282890), (8345, 226312), (13352, 141445), (16690, 113156), (28289, 66760), (33380, 56578)]