18985810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 37068696

約数和(自身を除く): 18082886

約数列:

[1, 2, 5, 10, 23, 37, 46, 74, 97, 115, 185, 194, 230, 370, 485, 529, 851, 970, 1058, 1702, 2231, 2645, 3589, 4255, 4462, 5290, 7178, 8510, 11155, 17945, 19573, 22310, 35890, 39146, 51313, 82547, 97865, 102626, 165094, 195730, 256565, 412735, 513130, 825470, 1898581, 3797162, 9492905, 18985810]

約数ペア:

[(1, 18985810), (2, 9492905), (5, 3797162), (10, 1898581), (23, 825470), (37, 513130), (46, 412735), (74, 256565), (97, 195730), (115, 165094), (185, 102626), (194, 97865), (230, 82547), (370, 51313), (485, 39146), (529, 35890), (851, 22310), (970, 19573), (1058, 17945), (1702, 11155), (2231, 8510), (2645, 7178), (3589, 5290), (4255, 4462)]