65028280

素因数分解:

$2^3\times 5^1\times {\mathrm{1625707}}^1$

素因数の和:1625718

約数の個数: 16

約数和(自身を含む): 146313720

約数和(自身を除く): 81285440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1625707, 3251414, 6502828, 8128535, 13005656, 16257070, 32514140, 65028280]

約数ペア:

[(1, 65028280), (2, 32514140), (4, 16257070), (5, 13005656), (8, 8128535), (10, 6502828), (20, 3251414), (40, 1625707)]