80624960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19381}}^1$

素因数の和:19411

約数の個数: 56

約数和(自身を含む): 206767176

約数和(自身を除く): 126142216

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 19381, 38762, 77524, 96905, 155048, 193810, 251953, 310096, 387620, 503906, 620192, 775240, 1007812, 1240384, 1259765, 1550480, 2015624, 2519530, 3100960, 4031248, 5039060, 6201920, 8062496, 10078120, 16124992, 20156240, 40312480, 80624960]

約数ペア:

[(1, 80624960), (2, 40312480), (4, 20156240), (5, 16124992), (8, 10078120), (10, 8062496), (13, 6201920), (16, 5039060), (20, 4031248), (26, 3100960), (32, 2519530), (40, 2015624), (52, 1550480), (64, 1259765), (65, 1240384), (80, 1007812), (104, 775240), (130, 620192), (160, 503906), (208, 387620), (260, 310096), (320, 251953), (416, 193810), (520, 155048), (832, 96905), (1040, 77524), (2080, 38762), (4160, 19381)]