20177362780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1\times {\mathrm{29761}}^1$

素因数の和:30190

約数の個数: 48

約数和(自身を含む): 42900137280

約数和(自身を除く): 22722774500

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 311, 436, 545, 622, 1090, 1244, 1555, 2180, 3110, 6220, 29761, 33899, 59522, 67798, 119044, 135596, 148805, 169495, 297610, 338990, 595220, 677980, 3243949, 6487898, 9255671, 12975796, 16219745, 18511342, 32439490, 37022684, 46278355, 64878980, 92556710, 185113420, 1008868139, 2017736278, 4035472556, 5044340695, 10088681390, 20177362780]

約数ペア:

[(1, 20177362780), (2, 10088681390), (4, 5044340695), (5, 4035472556), (10, 2017736278), (20, 1008868139), (109, 185113420), (218, 92556710), (311, 64878980), (436, 46278355), (545, 37022684), (622, 32439490), (1090, 18511342), (1244, 16219745), (1555, 12975796), (2180, 9255671), (3110, 6487898), (6220, 3243949), (29761, 677980), (33899, 595220), (59522, 338990), (67798, 297610), (119044, 169495), (135596, 148805)]