81304548

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:933

約数の個数: 72

約数和(自身を含む): 210043008

約数和(自身を除く): 128738460

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 169, 188, 282, 338, 507, 564, 611, 676, 853, 1014, 1222, 1706, 1833, 2028, 2444, 2559, 3412, 3666, 5118, 7332, 7943, 10236, 11089, 15886, 22178, 23829, 31772, 33267, 40091, 44356, 47658, 66534, 80182, 95316, 120273, 133068, 144157, 160364, 240546, 288314, 432471, 481092, 521183, 576628, 864942, 1042366, 1563549, 1729884, 2084732, 3127098, 6254196, 6775379, 13550758, 20326137, 27101516, 40652274, 81304548]

約数ペア:

[(1, 81304548), (2, 40652274), (3, 27101516), (4, 20326137), (6, 13550758), (12, 6775379), (13, 6254196), (26, 3127098), (39, 2084732), (47, 1729884), (52, 1563549), (78, 1042366), (94, 864942), (141, 576628), (156, 521183), (169, 481092), (188, 432471), (282, 288314), (338, 240546), (507, 160364), (564, 144157), (611, 133068), (676, 120273), (853, 95316), (1014, 80182), (1222, 66534), (1706, 47658), (1833, 44356), (2028, 40091), (2444, 33267), (2559, 31772), (3412, 23829), (3666, 22178), (5118, 15886), (7332, 11089), (7943, 10236)]