17991290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 35834400

約数和(自身を除く): 17843110

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 179, 190, 230, 358, 437, 529, 874, 895, 1058, 1790, 2185, 2645, 3401, 4117, 4370, 5290, 6802, 8234, 10051, 17005, 20102, 20585, 34010, 41170, 50255, 78223, 94691, 100510, 156446, 189382, 391115, 473455, 782230, 946910, 1799129, 3598258, 8995645, 17991290]

約数ペア:

[(1, 17991290), (2, 8995645), (5, 3598258), (10, 1799129), (19, 946910), (23, 782230), (38, 473455), (46, 391115), (95, 189382), (115, 156446), (179, 100510), (190, 94691), (230, 78223), (358, 50255), (437, 41170), (529, 34010), (874, 20585), (895, 20102), (1058, 17005), (1790, 10051), (2185, 8234), (2645, 6802), (3401, 5290), (4117, 4370)]