19726680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3823}}^1$

素因数の和:3880

約数の個数: 64

約数和(自身を含む): 60572160

約数和(自身を除く): 40845480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3823, 5160, 7646, 11469, 15292, 19115, 22938, 30584, 38230, 45876, 57345, 76460, 91752, 114690, 152920, 164389, 229380, 328778, 458760, 493167, 657556, 821945, 986334, 1315112, 1643890, 1972668, 2465835, 3287780, 3945336, 4931670, 6575560, 9863340, 19726680]

約数ペア:

[(1, 19726680), (2, 9863340), (3, 6575560), (4, 4931670), (5, 3945336), (6, 3287780), (8, 2465835), (10, 1972668), (12, 1643890), (15, 1315112), (20, 986334), (24, 821945), (30, 657556), (40, 493167), (43, 458760), (60, 328778), (86, 229380), (120, 164389), (129, 152920), (172, 114690), (215, 91752), (258, 76460), (344, 57345), (430, 45876), (516, 38230), (645, 30584), (860, 22938), (1032, 19115), (1290, 15292), (1720, 11469), (2580, 7646), (3823, 5160)]