85531428

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 221981760

約数和(自身を除く): 136450332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 109, 142, 213, 218, 284, 307, 327, 426, 436, 614, 639, 654, 852, 921, 981, 1228, 1278, 1308, 1842, 1962, 2556, 2763, 3684, 3924, 5526, 7739, 11052, 15478, 21797, 23217, 30956, 33463, 43594, 46434, 65391, 66926, 69651, 87188, 92868, 100389, 130782, 133852, 139302, 196173, 200778, 261564, 278604, 301167, 392346, 401556, 602334, 784692, 1204668, 2375873, 4751746, 7127619, 9503492, 14255238, 21382857, 28510476, 42765714, 85531428]

約数ペア:

[(1, 85531428), (2, 42765714), (3, 28510476), (4, 21382857), (6, 14255238), (9, 9503492), (12, 7127619), (18, 4751746), (36, 2375873), (71, 1204668), (109, 784692), (142, 602334), (213, 401556), (218, 392346), (284, 301167), (307, 278604), (327, 261564), (426, 200778), (436, 196173), (614, 139302), (639, 133852), (654, 130782), (852, 100389), (921, 92868), (981, 87188), (1228, 69651), (1278, 66926), (1308, 65391), (1842, 46434), (1962, 43594), (2556, 33463), (2763, 30956), (3684, 23217), (3924, 21797), (5526, 15478), (7739, 11052)]