20014865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 27941760

約数和(自身を除く): 7926895

約数列:

[1, 5, 13, 17, 59, 65, 85, 221, 295, 307, 767, 1003, 1105, 1535, 3835, 3991, 5015, 5219, 13039, 18113, 19955, 26095, 65195, 67847, 90565, 235469, 307921, 339235, 1177345, 1539605, 4002973, 20014865]

約数ペア:

[(1, 20014865), (5, 4002973), (13, 1539605), (17, 1177345), (59, 339235), (65, 307921), (85, 235469), (221, 90565), (295, 67847), (307, 65195), (767, 26095), (1003, 19955), (1105, 18113), (1535, 13039), (3835, 5219), (3991, 5015)]