81381244

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 176389920

約数和(自身を除く): 95008676

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 89, 113, 119, 178, 226, 238, 289, 356, 452, 476, 578, 623, 791, 1156, 1246, 1513, 1582, 1921, 2023, 2492, 3026, 3164, 3842, 4046, 6052, 7684, 8092, 10057, 10591, 13447, 20114, 21182, 25721, 26894, 32657, 40228, 42364, 51442, 53788, 65314, 70399, 102884, 130628, 140798, 170969, 180047, 228599, 281596, 341938, 360094, 457198, 683876, 720188, 914396, 1196783, 2393566, 2906473, 4787132, 5812946, 11625892, 20345311, 40690622, 81381244]

約数ペア:

[(1, 81381244), (2, 40690622), (4, 20345311), (7, 11625892), (14, 5812946), (17, 4787132), (28, 2906473), (34, 2393566), (68, 1196783), (89, 914396), (113, 720188), (119, 683876), (178, 457198), (226, 360094), (238, 341938), (289, 281596), (356, 228599), (452, 180047), (476, 170969), (578, 140798), (623, 130628), (791, 102884), (1156, 70399), (1246, 65314), (1513, 53788), (1582, 51442), (1921, 42364), (2023, 40228), (2492, 32657), (3026, 26894), (3164, 25721), (3842, 21182), (4046, 20114), (6052, 13447), (7684, 10591), (8092, 10057)]