156720123

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 277150720

約数和(自身を除く): 120430597

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 73, 111, 189, 219, 259, 307, 333, 511, 657, 777, 921, 999, 1533, 1971, 2149, 2331, 2701, 2763, 4599, 6447, 6993, 8103, 8289, 11359, 13797, 18907, 19341, 22411, 24309, 34077, 56721, 58023, 67233, 72927, 79513, 102231, 156877, 170163, 201699, 238539, 306693, 470631, 510489, 605097, 715617, 829207, 1411893, 2146851, 2487621, 4235679, 5804449, 7462863, 17413347, 22388589, 52240041, 156720123]

約数ペア:

[(1, 156720123), (3, 52240041), (7, 22388589), (9, 17413347), (21, 7462863), (27, 5804449), (37, 4235679), (63, 2487621), (73, 2146851), (111, 1411893), (189, 829207), (219, 715617), (259, 605097), (307, 510489), (333, 470631), (511, 306693), (657, 238539), (777, 201699), (921, 170163), (999, 156877), (1533, 102231), (1971, 79513), (2149, 72927), (2331, 67233), (2701, 58023), (2763, 56721), (4599, 34077), (6447, 24309), (6993, 22411), (8103, 19341), (8289, 18907), (11359, 13797)]