19440800

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1318

約数の個数: 72

約数和(自身を含む): 49996800

約数和(自身を除く): 30556000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 152, 160, 190, 200, 304, 380, 400, 475, 608, 760, 800, 950, 1279, 1520, 1900, 2558, 3040, 3800, 5116, 6395, 7600, 10232, 12790, 15200, 20464, 24301, 25580, 31975, 40928, 48602, 51160, 63950, 97204, 102320, 121505, 127900, 194408, 204640, 243010, 255800, 388816, 486020, 511600, 607525, 777632, 972040, 1023200, 1215050, 1944080, 2430100, 3888160, 4860200, 9720400, 19440800]

約数ペア:

[(1, 19440800), (2, 9720400), (4, 4860200), (5, 3888160), (8, 2430100), (10, 1944080), (16, 1215050), (19, 1023200), (20, 972040), (25, 777632), (32, 607525), (38, 511600), (40, 486020), (50, 388816), (76, 255800), (80, 243010), (95, 204640), (100, 194408), (152, 127900), (160, 121505), (190, 102320), (200, 97204), (304, 63950), (380, 51160), (400, 48602), (475, 40928), (608, 31975), (760, 25580), (800, 24301), (950, 20464), (1279, 15200), (1520, 12790), (1900, 10232), (2558, 7600), (3040, 6395), (3800, 5116)]