19478030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 42130368

約数和(自身を除く): 22652338

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 53, 55, 65, 106, 110, 130, 143, 257, 265, 286, 514, 530, 583, 689, 715, 1166, 1285, 1378, 1430, 2570, 2827, 2915, 3341, 3445, 5654, 5830, 6682, 6890, 7579, 13621, 14135, 15158, 16705, 27242, 28270, 33410, 36751, 37895, 68105, 73502, 75790, 136210, 149831, 177073, 183755, 299662, 354146, 367510, 749155, 885365, 1498310, 1770730, 1947803, 3895606, 9739015, 19478030]

約数ペア:

[(1, 19478030), (2, 9739015), (5, 3895606), (10, 1947803), (11, 1770730), (13, 1498310), (22, 885365), (26, 749155), (53, 367510), (55, 354146), (65, 299662), (106, 183755), (110, 177073), (130, 149831), (143, 136210), (257, 75790), (265, 73502), (286, 68105), (514, 37895), (530, 36751), (583, 33410), (689, 28270), (715, 27242), (1166, 16705), (1285, 15158), (1378, 14135), (1430, 13621), (2570, 7579), (2827, 6890), (2915, 6682), (3341, 5830), (3445, 5654)]