128398428

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{6473}}^1$

素因数の和:6531

約数の個数: 72

約数和(自身を含む): 353480400

約数和(自身を除く): 225081972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1102, 1653, 2204, 3306, 4959, 6473, 6612, 9918, 12946, 19419, 19836, 25892, 38838, 58257, 77676, 116514, 122987, 187717, 233028, 245974, 368961, 375434, 491948, 563151, 737922, 750868, 1106883, 1126302, 1475844, 1689453, 2213766, 2252604, 3378906, 3566623, 4427532, 6757812, 7133246, 10699869, 14266492, 21399738, 32099607, 42799476, 64199214, 128398428]

約数ペア:

[(1, 128398428), (2, 64199214), (3, 42799476), (4, 32099607), (6, 21399738), (9, 14266492), (12, 10699869), (18, 7133246), (19, 6757812), (29, 4427532), (36, 3566623), (38, 3378906), (57, 2252604), (58, 2213766), (76, 1689453), (87, 1475844), (114, 1126302), (116, 1106883), (171, 750868), (174, 737922), (228, 563151), (261, 491948), (342, 375434), (348, 368961), (522, 245974), (551, 233028), (684, 187717), (1044, 122987), (1102, 116514), (1653, 77676), (2204, 58257), (3306, 38838), (4959, 25892), (6473, 19836), (6612, 19419), (9918, 12946)]