19668560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5231}}^1$

素因数の和:5291

約数の個数: 40

約数和(自身を含む): 46711296

約数和(自身を除く): 27042736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5231, 10462, 20924, 26155, 41848, 52310, 83696, 104620, 209240, 245857, 418480, 491714, 983428, 1229285, 1966856, 2458570, 3933712, 4917140, 9834280, 19668560]

約数ペア:

[(1, 19668560), (2, 9834280), (4, 4917140), (5, 3933712), (8, 2458570), (10, 1966856), (16, 1229285), (20, 983428), (40, 491714), (47, 418480), (80, 245857), (94, 209240), (188, 104620), (235, 83696), (376, 52310), (470, 41848), (752, 26155), (940, 20924), (1880, 10462), (3760, 5231)]