20159360

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2423}}^1$

素因数の和:2455

約数の個数: 64

約数和(自身を含む): 51922080

約数和(自身を除く): 31762720

約数列:

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

約数ペア:

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