80637440

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2423}}^1$

素因数の和:2459

約数の個数: 80

約数和(自身を含む): 208299168

約数和(自身を除く): 127661728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1040, 1280, 1664, 2080, 2423, 2560, 3328, 4160, 4846, 6656, 8320, 9692, 12115, 16640, 19384, 24230, 31499, 33280, 38768, 48460, 62998, 77536, 96920, 125996, 155072, 157495, 193840, 251992, 310144, 314990, 387680, 503984, 620288, 629980, 775360, 1007968, 1240576, 1259960, 1550720, 2015936, 2519920, 3101440, 4031872, 5039840, 6202880, 8063744, 10079680, 16127488, 20159360, 40318720, 80637440]

約数ペア:

[(1, 80637440), (2, 40318720), (4, 20159360), (5, 16127488), (8, 10079680), (10, 8063744), (13, 6202880), (16, 5039840), (20, 4031872), (26, 3101440), (32, 2519920), (40, 2015936), (52, 1550720), (64, 1259960), (65, 1240576), (80, 1007968), (104, 775360), (128, 629980), (130, 620288), (160, 503984), (208, 387680), (256, 314990), (260, 310144), (320, 251992), (416, 193840), (512, 157495), (520, 155072), (640, 125996), (832, 96920), (1040, 77536), (1280, 62998), (1664, 48460), (2080, 38768), (2423, 33280), (2560, 31499), (3328, 24230), (4160, 19384), (4846, 16640), (6656, 12115), (8320, 9692)]