80521420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{575153}}^1$

素因数の和:575169

約数の個数: 24

約数和(自身を含む): 193251744

約数和(自身を除く): 112730324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 575153, 1150306, 2300612, 2875765, 4026071, 5751530, 8052142, 11503060, 16104284, 20130355, 40260710, 80521420]

約数ペア:

[(1, 80521420), (2, 40260710), (4, 20130355), (5, 16104284), (7, 11503060), (10, 8052142), (14, 5751530), (20, 4026071), (28, 2875765), (35, 2300612), (70, 1150306), (140, 575153)]