28525420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18523}}^1$

素因数の和:18550

約数の個数: 48

約数和(自身を含む): 74688768

約数和(自身を除く): 46163348

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18523, 37046, 74092, 92615, 129661, 185230, 203753, 259322, 370460, 407506, 518644, 648305, 815012, 1018765, 1296610, 1426271, 2037530, 2593220, 2852542, 4075060, 5705084, 7131355, 14262710, 28525420]

約数ペア:

[(1, 28525420), (2, 14262710), (4, 7131355), (5, 5705084), (7, 4075060), (10, 2852542), (11, 2593220), (14, 2037530), (20, 1426271), (22, 1296610), (28, 1018765), (35, 815012), (44, 648305), (55, 518644), (70, 407506), (77, 370460), (110, 259322), (140, 203753), (154, 185230), (220, 129661), (308, 92615), (385, 74092), (770, 37046), (1540, 18523)]