213654320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{242789}}^1$

素因数の和:242813

約数の個数: 40

約数和(自身を含む): 541907280

約数和(自身を除く): 328252960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 242789, 485578, 971156, 1213945, 1942312, 2427890, 2670679, 3884624, 4855780, 5341358, 9711560, 10682716, 13353395, 19423120, 21365432, 26706790, 42730864, 53413580, 106827160, 213654320]

約数ペア:

[(1, 213654320), (2, 106827160), (4, 53413580), (5, 42730864), (8, 26706790), (10, 21365432), (11, 19423120), (16, 13353395), (20, 10682716), (22, 9711560), (40, 5341358), (44, 4855780), (55, 3884624), (80, 2670679), (88, 2427890), (110, 1942312), (176, 1213945), (220, 971156), (440, 485578), (880, 242789)]