1288240

素因数分解:

$2^4\times 5^1\times {\mathrm{16103}}^1$

素因数の和:16116

約数の個数: 20

約数和(自身を含む): 2995344

約数和(自身を除く): 1707104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16103, 32206, 64412, 80515, 128824, 161030, 257648, 322060, 644120, 1288240]

約数ペア:

[(1, 1288240), (2, 644120), (4, 322060), (5, 257648), (8, 161030), (10, 128824), (16, 80515), (20, 64412), (40, 32206), (80, 16103)]