65281440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19429}}^1$

素因数の和:19454

約数の個数: 96

約数和(自身を含む): 235025280

約数和(自身を除く): 169743840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 19429, 38858, 58287, 77716, 97145, 116574, 136003, 155432, 194290, 233148, 272006, 291435, 310864, 388580, 408009, 466296, 544012, 582870, 621728, 680015, 777160, 816018, 932592, 1088024, 1165740, 1360030, 1554320, 1632036, 1865184, 2040045, 2176048, 2331480, 2720060, 3108640, 3264072, 4080090, 4352096, 4662960, 5440120, 6528144, 8160180, 9325920, 10880240, 13056288, 16320360, 21760480, 32640720, 65281440]

約数ペア:

[(1, 65281440), (2, 32640720), (3, 21760480), (4, 16320360), (5, 13056288), (6, 10880240), (7, 9325920), (8, 8160180), (10, 6528144), (12, 5440120), (14, 4662960), (15, 4352096), (16, 4080090), (20, 3264072), (21, 3108640), (24, 2720060), (28, 2331480), (30, 2176048), (32, 2040045), (35, 1865184), (40, 1632036), (42, 1554320), (48, 1360030), (56, 1165740), (60, 1088024), (70, 932592), (80, 816018), (84, 777160), (96, 680015), (105, 621728), (112, 582870), (120, 544012), (140, 466296), (160, 408009), (168, 388580), (210, 310864), (224, 291435), (240, 272006), (280, 233148), (336, 194290), (420, 155432), (480, 136003), (560, 116574), (672, 97145), (840, 77716), (1120, 58287), (1680, 38858), (3360, 19429)]