20120284795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{188401}}^1$

素因数の和:188503

約数の個数: 32

約数和(自身を含む): 27346927104

約数和(自身を除く): 7226642309

約数列:

[1, 5, 13, 31, 53, 65, 155, 265, 403, 689, 1643, 2015, 3445, 8215, 21359, 106795, 188401, 942005, 2449213, 5840431, 9985253, 12246065, 29202155, 49926265, 75925603, 129808289, 309542843, 379628015, 649041445, 1547714215, 4024056959, 20120284795]

約数ペア:

[(1, 20120284795), (5, 4024056959), (13, 1547714215), (31, 649041445), (53, 379628015), (65, 309542843), (155, 129808289), (265, 75925603), (403, 49926265), (689, 29202155), (1643, 12246065), (2015, 9985253), (3445, 5840431), (8215, 2449213), (21359, 942005), (106795, 188401)]