12540280

素因数分解:

$2^3\times 5^1\times {\mathrm{313507}}^1$

素因数の和:313518

約数の個数: 16

約数和(自身を含む): 28215720

約数和(自身を除く): 15675440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313507, 627014, 1254028, 1567535, 2508056, 3135070, 6270140, 12540280]

約数ペア:

[(1, 12540280), (2, 6270140), (4, 3135070), (5, 2508056), (8, 1567535), (10, 1254028), (20, 627014), (40, 313507)]