20738375

素因数分解:

$5^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 29966976

約数和(自身を除く): 9228601

約数列:

[1, 5, 7, 25, 35, 125, 137, 173, 175, 685, 865, 875, 959, 1211, 3425, 4325, 4795, 6055, 17125, 21625, 23701, 23975, 30275, 118505, 119875, 151375, 165907, 592525, 829535, 2962625, 4147675, 20738375]

約数ペア:

[(1, 20738375), (5, 4147675), (7, 2962625), (25, 829535), (35, 592525), (125, 165907), (137, 151375), (173, 119875), (175, 118505), (685, 30275), (865, 23975), (875, 23701), (959, 21625), (1211, 17125), (3425, 6055), (4325, 4795)]