51916880

素因数分解:

$2^4\times 5^1\times {\mathrm{648961}}^1$

素因数の和:648974

約数の個数: 20

約数和(自身を含む): 120706932

約数和(自身を除く): 68790052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648961, 1297922, 2595844, 3244805, 5191688, 6489610, 10383376, 12979220, 25958440, 51916880]

約数ペア:

[(1, 51916880), (2, 25958440), (4, 12979220), (5, 10383376), (8, 6489610), (10, 5191688), (16, 3244805), (20, 2595844), (40, 1297922), (80, 648961)]