81157938

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 178274304

約数和(自身を除く): 97116366

約数列:

[1, 2, 3, 6, 23, 31, 46, 61, 62, 69, 93, 122, 138, 183, 186, 311, 366, 622, 713, 933, 1403, 1426, 1866, 1891, 2139, 2806, 3782, 4209, 4278, 5673, 7153, 8418, 9641, 11346, 14306, 18971, 19282, 21459, 28923, 37942, 42918, 43493, 56913, 57846, 86986, 113826, 130479, 221743, 260958, 436333, 443486, 588101, 665229, 872666, 1176202, 1308999, 1330458, 1764303, 2617998, 3528606, 13526323, 27052646, 40578969, 81157938]

約数ペア:

[(1, 81157938), (2, 40578969), (3, 27052646), (6, 13526323), (23, 3528606), (31, 2617998), (46, 1764303), (61, 1330458), (62, 1308999), (69, 1176202), (93, 872666), (122, 665229), (138, 588101), (183, 443486), (186, 436333), (311, 260958), (366, 221743), (622, 130479), (713, 113826), (933, 86986), (1403, 57846), (1426, 56913), (1866, 43493), (1891, 42918), (2139, 37942), (2806, 28923), (3782, 21459), (4209, 19282), (4278, 18971), (5673, 14306), (7153, 11346), (8418, 9641)]