3968240

素因数分解:

$2^4\times 5^1\times {\mathrm{49603}}^1$

素因数の和:49616

約数の個数: 20

約数和(自身を含む): 9226344

約数和(自身を除く): 5258104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 49603, 99206, 198412, 248015, 396824, 496030, 793648, 992060, 1984120, 3968240]

約数ペア:

[(1, 3968240), (2, 1984120), (4, 992060), (5, 793648), (8, 496030), (10, 396824), (16, 248015), (20, 198412), (40, 99206), (80, 49603)]