20772825

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 15224871

約数列:

[1, 3, 5, 15, 25, 47, 71, 75, 83, 141, 213, 235, 249, 355, 415, 705, 1065, 1175, 1245, 1775, 2075, 3337, 3525, 3901, 5325, 5893, 6225, 10011, 11703, 16685, 17679, 19505, 29465, 50055, 58515, 83425, 88395, 97525, 147325, 250275, 276971, 292575, 441975, 830913, 1384855, 4154565, 6924275, 20772825]

約数ペア:

[(1, 20772825), (3, 6924275), (5, 4154565), (15, 1384855), (25, 830913), (47, 441975), (71, 292575), (75, 276971), (83, 250275), (141, 147325), (213, 97525), (235, 88395), (249, 83425), (355, 58515), (415, 50055), (705, 29465), (1065, 19505), (1175, 17679), (1245, 16685), (1775, 11703), (2075, 10011), (3337, 6225), (3525, 5893), (3901, 5325)]