78867884

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{221539}}^1$

素因数の和:221632

約数の個数: 12

約数和(自身を含む): 139570200

約数和(自身を除く): 60702316

約数列:

[1, 2, 4, 89, 178, 356, 221539, 443078, 886156, 19716971, 39433942, 78867884]

約数ペア:

[(1, 78867884), (2, 39433942), (4, 19716971), (89, 886156), (178, 443078), (356, 221539)]