161908812

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{997}}^1$

素因数の和:1367

約数の個数: 72

約数和(自身を含む): 442465296

約数和(自身を除く): 280556484

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 347, 468, 694, 997, 1041, 1388, 1994, 2082, 2991, 3123, 3988, 4164, 4511, 5982, 6246, 8973, 9022, 11964, 12492, 12961, 13533, 17946, 18044, 25922, 27066, 35892, 38883, 40599, 51844, 54132, 77766, 81198, 116649, 155532, 162396, 233298, 345959, 466596, 691918, 1037877, 1383836, 2075754, 3113631, 4151508, 4497467, 6227262, 8994934, 12454524, 13492401, 17989868, 26984802, 40477203, 53969604, 80954406, 161908812]

約数ペア:

[(1, 161908812), (2, 80954406), (3, 53969604), (4, 40477203), (6, 26984802), (9, 17989868), (12, 13492401), (13, 12454524), (18, 8994934), (26, 6227262), (36, 4497467), (39, 4151508), (52, 3113631), (78, 2075754), (117, 1383836), (156, 1037877), (234, 691918), (347, 466596), (468, 345959), (694, 233298), (997, 162396), (1041, 155532), (1388, 116649), (1994, 81198), (2082, 77766), (2991, 54132), (3123, 51844), (3988, 40599), (4164, 38883), (4511, 35892), (5982, 27066), (6246, 25922), (8973, 18044), (9022, 17946), (11964, 13533), (12492, 12961)]