20157380

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12143}}^1$

素因数の和:12235

約数の個数: 24

約数和(自身を含む): 42844032

約数和(自身を除く): 22686652

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 12143, 24286, 48572, 60715, 121430, 242860, 1007869, 2015738, 4031476, 5039345, 10078690, 20157380]

約数ペア:

[(1, 20157380), (2, 10078690), (4, 5039345), (5, 4031476), (10, 2015738), (20, 1007869), (83, 242860), (166, 121430), (332, 60715), (415, 48572), (830, 24286), (1660, 12143)]