203414320

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{12907}}^1$

素因数の和:13117

約数の個数: 40

約数和(自身を含む): 475375824

約数和(自身を除く): 271961504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 12907, 15760, 25814, 51628, 64535, 103256, 129070, 206512, 258140, 516280, 1032560, 2542679, 5085358, 10170716, 12713395, 20341432, 25426790, 40682864, 50853580, 101707160, 203414320]

約数ペア:

[(1, 203414320), (2, 101707160), (4, 50853580), (5, 40682864), (8, 25426790), (10, 20341432), (16, 12713395), (20, 10170716), (40, 5085358), (80, 2542679), (197, 1032560), (394, 516280), (788, 258140), (985, 206512), (1576, 129070), (1970, 103256), (3152, 64535), (3940, 51628), (7880, 25814), (12907, 15760)]