81751644

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{569}}^1$

素因数の和:899

約数の個数: 72

約数和(自身を含む): 223663440

約数和(自身を除く): 141911796

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 307, 468, 569, 614, 921, 1138, 1228, 1707, 1842, 2276, 2763, 3414, 3684, 3991, 5121, 5526, 6828, 7397, 7982, 10242, 11052, 11973, 14794, 15964, 20484, 22191, 23946, 29588, 35919, 44382, 47892, 66573, 71838, 88764, 133146, 143676, 174683, 266292, 349366, 524049, 698732, 1048098, 1572147, 2096196, 2270879, 3144294, 4541758, 6288588, 6812637, 9083516, 13625274, 20437911, 27250548, 40875822, 81751644]

約数ペア:

[(1, 81751644), (2, 40875822), (3, 27250548), (4, 20437911), (6, 13625274), (9, 9083516), (12, 6812637), (13, 6288588), (18, 4541758), (26, 3144294), (36, 2270879), (39, 2096196), (52, 1572147), (78, 1048098), (117, 698732), (156, 524049), (234, 349366), (307, 266292), (468, 174683), (569, 143676), (614, 133146), (921, 88764), (1138, 71838), (1228, 66573), (1707, 47892), (1842, 44382), (2276, 35919), (2763, 29588), (3414, 23946), (3684, 22191), (3991, 20484), (5121, 15964), (5526, 14794), (6828, 11973), (7397, 11052), (7982, 10242)]