18796075

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 24442880

約数和(自身を除く): 5646805

約数列:

[1, 5, 25, 31, 79, 155, 307, 395, 775, 1535, 1975, 2449, 7675, 9517, 12245, 24253, 47585, 61225, 121265, 237925, 606325, 751843, 3759215, 18796075]

約数ペア:

[(1, 18796075), (5, 3759215), (25, 751843), (31, 606325), (79, 237925), (155, 121265), (307, 61225), (395, 47585), (775, 24253), (1535, 12245), (1975, 9517), (2449, 7675)]