30777980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17291}}^1$

素因数の和:17389

約数の個数: 24

約数和(自身を含む): 65363760

約数和(自身を除く): 34585780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 17291, 34582, 69164, 86455, 172910, 345820, 1538899, 3077798, 6155596, 7694495, 15388990, 30777980]

約数ペア:

[(1, 30777980), (2, 15388990), (4, 7694495), (5, 6155596), (10, 3077798), (20, 1538899), (89, 345820), (178, 172910), (356, 86455), (445, 69164), (890, 34582), (1780, 17291)]