16513880

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1319}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 37303200

約数和(自身を除く): 20789320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1319, 1565, 2504, 2638, 3130, 5276, 6260, 6595, 10552, 12520, 13190, 26380, 52760, 412847, 825694, 1651388, 2064235, 3302776, 4128470, 8256940, 16513880]

約数ペア:

[(1, 16513880), (2, 8256940), (4, 4128470), (5, 3302776), (8, 2064235), (10, 1651388), (20, 825694), (40, 412847), (313, 52760), (626, 26380), (1252, 13190), (1319, 12520), (1565, 10552), (2504, 6595), (2638, 6260), (3130, 5276)]