138771438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2057

約数の個数: 64

約数和(自身を含む): 319334400

約数和(自身を除く): 180562962

約数列:

[1, 2, 3, 6, 13, 26, 29, 31, 39, 58, 62, 78, 87, 93, 174, 186, 377, 403, 754, 806, 899, 1131, 1209, 1798, 1979, 2262, 2418, 2697, 3958, 5394, 5937, 11687, 11874, 23374, 25727, 35061, 51454, 57391, 61349, 70122, 77181, 114782, 122698, 154362, 172173, 184047, 344346, 368094, 746083, 797537, 1492166, 1595074, 1779121, 2238249, 2392611, 3558242, 4476498, 4785222, 5337363, 10674726, 23128573, 46257146, 69385719, 138771438]

約数ペア:

[(1, 138771438), (2, 69385719), (3, 46257146), (6, 23128573), (13, 10674726), (26, 5337363), (29, 4785222), (31, 4476498), (39, 3558242), (58, 2392611), (62, 2238249), (78, 1779121), (87, 1595074), (93, 1492166), (174, 797537), (186, 746083), (377, 368094), (403, 344346), (754, 184047), (806, 172173), (899, 154362), (1131, 122698), (1209, 114782), (1798, 77181), (1979, 70122), (2262, 61349), (2418, 57391), (2697, 51454), (3958, 35061), (5394, 25727), (5937, 23374), (11687, 11874)]