19325920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:164

約数の個数: 72

約数和(自身を含む): 47617416

約数和(自身を除く): 28291496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 53, 80, 86, 106, 160, 172, 212, 215, 265, 344, 424, 430, 530, 688, 848, 860, 1060, 1376, 1696, 1720, 2120, 2279, 2809, 3440, 4240, 4558, 5618, 6880, 8480, 9116, 11236, 11395, 14045, 18232, 22472, 22790, 28090, 36464, 44944, 45580, 56180, 72928, 89888, 91160, 112360, 120787, 182320, 224720, 241574, 364640, 449440, 483148, 603935, 966296, 1207870, 1932592, 2415740, 3865184, 4831480, 9662960, 19325920]

約数ペア:

[(1, 19325920), (2, 9662960), (4, 4831480), (5, 3865184), (8, 2415740), (10, 1932592), (16, 1207870), (20, 966296), (32, 603935), (40, 483148), (43, 449440), (53, 364640), (80, 241574), (86, 224720), (106, 182320), (160, 120787), (172, 112360), (212, 91160), (215, 89888), (265, 72928), (344, 56180), (424, 45580), (430, 44944), (530, 36464), (688, 28090), (848, 22790), (860, 22472), (1060, 18232), (1376, 14045), (1696, 11395), (1720, 11236), (2120, 9116), (2279, 8480), (2809, 6880), (3440, 5618), (4240, 4558)]