81516618

素因数分解:

$2^1\times 3^4\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:261

約数の個数: 80

約数和(自身を含む): 189860616

約数和(自身を除く): 108343998

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 73, 81, 113, 122, 146, 162, 183, 219, 226, 339, 366, 438, 549, 657, 678, 1017, 1098, 1314, 1647, 1971, 2034, 3051, 3294, 3942, 4453, 4941, 5913, 6102, 6893, 8249, 8906, 9153, 9882, 11826, 13359, 13786, 16498, 18306, 20679, 24747, 26718, 40077, 41358, 49494, 62037, 74241, 80154, 120231, 124074, 148482, 186111, 222723, 240462, 360693, 372222, 445446, 503189, 558333, 668169, 721386, 1006378, 1116666, 1336338, 1509567, 3019134, 4528701, 9057402, 13586103, 27172206, 40758309, 81516618]

約数ペア:

[(1, 81516618), (2, 40758309), (3, 27172206), (6, 13586103), (9, 9057402), (18, 4528701), (27, 3019134), (54, 1509567), (61, 1336338), (73, 1116666), (81, 1006378), (113, 721386), (122, 668169), (146, 558333), (162, 503189), (183, 445446), (219, 372222), (226, 360693), (339, 240462), (366, 222723), (438, 186111), (549, 148482), (657, 124074), (678, 120231), (1017, 80154), (1098, 74241), (1314, 62037), (1647, 49494), (1971, 41358), (2034, 40077), (3051, 26718), (3294, 24747), (3942, 20679), (4453, 18306), (4941, 16498), (5913, 13786), (6102, 13359), (6893, 11826), (8249, 9882), (8906, 9153)]