19932770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 43110144

約数和(自身を除く): 23177374

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 53, 55, 65, 106, 110, 130, 143, 263, 265, 286, 526, 530, 583, 689, 715, 1166, 1315, 1378, 1430, 2630, 2893, 2915, 3419, 3445, 5786, 5830, 6838, 6890, 7579, 13939, 14465, 15158, 17095, 27878, 28930, 34190, 37609, 37895, 69695, 75218, 75790, 139390, 153329, 181207, 188045, 306658, 362414, 376090, 766645, 906035, 1533290, 1812070, 1993277, 3986554, 9966385, 19932770]

約数ペア:

[(1, 19932770), (2, 9966385), (5, 3986554), (10, 1993277), (11, 1812070), (13, 1533290), (22, 906035), (26, 766645), (53, 376090), (55, 362414), (65, 306658), (106, 188045), (110, 181207), (130, 153329), (143, 139390), (263, 75790), (265, 75218), (286, 69695), (526, 37895), (530, 37609), (583, 34190), (689, 28930), (715, 27878), (1166, 17095), (1315, 15158), (1378, 14465), (1430, 13939), (2630, 7579), (2893, 6890), (2915, 6838), (3419, 5830), (3445, 5786)]