19125320

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{739}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 43156800

約数和(自身を除く): 24031480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 739, 1294, 1478, 2588, 2956, 3235, 3695, 5176, 5912, 6470, 7390, 12940, 14780, 25880, 29560, 478133, 956266, 1912532, 2390665, 3825064, 4781330, 9562660, 19125320]

約数ペア:

[(1, 19125320), (2, 9562660), (4, 4781330), (5, 3825064), (8, 2390665), (10, 1912532), (20, 956266), (40, 478133), (647, 29560), (739, 25880), (1294, 14780), (1478, 12940), (2588, 7390), (2956, 6470), (3235, 5912), (3695, 5176)]