81708138

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{997}}^1$

素因数の和:1191

約数の個数: 48

約数和(自身を含む): 184490280

約数和(自身を除く): 102782142

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 157, 174, 261, 314, 471, 522, 942, 997, 1413, 1994, 2826, 2991, 4553, 5982, 8973, 9106, 13659, 17946, 27318, 28913, 40977, 57826, 81954, 86739, 156529, 173478, 260217, 313058, 469587, 520434, 939174, 1408761, 2817522, 4539341, 9078682, 13618023, 27236046, 40854069, 81708138]

約数ペア:

[(1, 81708138), (2, 40854069), (3, 27236046), (6, 13618023), (9, 9078682), (18, 4539341), (29, 2817522), (58, 1408761), (87, 939174), (157, 520434), (174, 469587), (261, 313058), (314, 260217), (471, 173478), (522, 156529), (942, 86739), (997, 81954), (1413, 57826), (1994, 40977), (2826, 28913), (2991, 27318), (4553, 17946), (5982, 13659), (8973, 9106)]