28193420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 61326720

約数和(自身を除く): 33133300

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 178, 188, 235, 337, 356, 445, 470, 674, 890, 940, 1348, 1685, 1780, 3370, 4183, 6740, 8366, 15839, 16732, 20915, 29993, 31678, 41830, 59986, 63356, 79195, 83660, 119972, 149965, 158390, 299930, 316780, 599860, 1409671, 2819342, 5638684, 7048355, 14096710, 28193420]

約数ペア:

[(1, 28193420), (2, 14096710), (4, 7048355), (5, 5638684), (10, 2819342), (20, 1409671), (47, 599860), (89, 316780), (94, 299930), (178, 158390), (188, 149965), (235, 119972), (337, 83660), (356, 79195), (445, 63356), (470, 59986), (674, 41830), (890, 31678), (940, 29993), (1348, 20915), (1685, 16732), (1780, 15839), (3370, 8366), (4183, 6740)]