281221236

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{2777}}^1$

素因数の和:2913

約数の個数: 72

約数和(自身を含む): 743226120

約数和(自身を除く): 462004884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 97, 116, 174, 194, 261, 291, 348, 388, 522, 582, 873, 1044, 1164, 1746, 2777, 2813, 3492, 5554, 5626, 8331, 8439, 11108, 11252, 16662, 16878, 24993, 25317, 33324, 33756, 49986, 50634, 80533, 99972, 101268, 161066, 241599, 269369, 322132, 483198, 538738, 724797, 808107, 966396, 1077476, 1449594, 1616214, 2424321, 2899188, 3232428, 4848642, 7811701, 9697284, 15623402, 23435103, 31246804, 46870206, 70305309, 93740412, 140610618, 281221236]

約数ペア:

[(1, 281221236), (2, 140610618), (3, 93740412), (4, 70305309), (6, 46870206), (9, 31246804), (12, 23435103), (18, 15623402), (29, 9697284), (36, 7811701), (58, 4848642), (87, 3232428), (97, 2899188), (116, 2424321), (174, 1616214), (194, 1449594), (261, 1077476), (291, 966396), (348, 808107), (388, 724797), (522, 538738), (582, 483198), (873, 322132), (1044, 269369), (1164, 241599), (1746, 161066), (2777, 101268), (2813, 99972), (3492, 80533), (5554, 50634), (5626, 49986), (8331, 33756), (8439, 33324), (11108, 25317), (11252, 24993), (16662, 16878)]