84437680

素因数分解:

$2^4\times 5^1\times {\mathrm{1055471}}^1$

素因数の和:1055484

約数の個数: 20

約数和(自身を含む): 196317792

約数和(自身を除く): 111880112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1055471, 2110942, 4221884, 5277355, 8443768, 10554710, 16887536, 21109420, 42218840, 84437680]

約数ペア:

[(1, 84437680), (2, 42218840), (4, 21109420), (5, 16887536), (8, 10554710), (10, 8443768), (16, 5277355), (20, 4221884), (40, 2110942), (80, 1055471)]