19394650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 39774240

約数和(自身を除く): 20379590

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 179, 197, 275, 358, 394, 550, 895, 985, 1790, 1969, 1970, 2167, 3938, 4334, 4475, 4925, 8950, 9845, 9850, 10835, 19690, 21670, 35263, 49225, 54175, 70526, 98450, 108350, 176315, 352630, 387893, 775786, 881575, 1763150, 1939465, 3878930, 9697325, 19394650]

約数ペア:

[(1, 19394650), (2, 9697325), (5, 3878930), (10, 1939465), (11, 1763150), (22, 881575), (25, 775786), (50, 387893), (55, 352630), (110, 176315), (179, 108350), (197, 98450), (275, 70526), (358, 54175), (394, 49225), (550, 35263), (895, 21670), (985, 19690), (1790, 10835), (1969, 9850), (1970, 9845), (2167, 8950), (3938, 4925), (4334, 4475)]