19602050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 40075560

約数和(自身を除く): 20473510

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 130, 265, 325, 530, 569, 650, 689, 1138, 1325, 1378, 2650, 2845, 3445, 5690, 6890, 7397, 14225, 14794, 17225, 28450, 30157, 34450, 36985, 60314, 73970, 150785, 184925, 301570, 369850, 392041, 753925, 784082, 1507850, 1960205, 3920410, 9801025, 19602050]

約数ペア:

[(1, 19602050), (2, 9801025), (5, 3920410), (10, 1960205), (13, 1507850), (25, 784082), (26, 753925), (50, 392041), (53, 369850), (65, 301570), (106, 184925), (130, 150785), (265, 73970), (325, 60314), (530, 36985), (569, 34450), (650, 30157), (689, 28450), (1138, 17225), (1325, 14794), (1378, 14225), (2650, 7397), (2845, 6890), (3445, 5690)]