20390280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{169919}}^1$

素因数の和:169933

約数の個数: 32

約数和(自身を含む): 61171200

約数和(自身を除く): 40780920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 169919, 339838, 509757, 679676, 849595, 1019514, 1359352, 1699190, 2039028, 2548785, 3398380, 4078056, 5097570, 6796760, 10195140, 20390280]

約数ペア:

[(1, 20390280), (2, 10195140), (3, 6796760), (4, 5097570), (5, 4078056), (6, 3398380), (8, 2548785), (10, 2039028), (12, 1699190), (15, 1359352), (20, 1019514), (24, 849595), (30, 679676), (40, 509757), (60, 339838), (120, 169919)]