20170662640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3551173}}^1$

素因数の和:3551257

約数の個数: 40

約数和(自身を含む): 47557322208

約数和(自身を除く): 27386659568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 3551173, 7102346, 14204692, 17755865, 28409384, 35511730, 56818768, 71023460, 142046920, 252133283, 284093840, 504266566, 1008533132, 1260666415, 2017066264, 2521332830, 4034132528, 5042665660, 10085331320, 20170662640]

約数ペア:

[(1, 20170662640), (2, 10085331320), (4, 5042665660), (5, 4034132528), (8, 2521332830), (10, 2017066264), (16, 1260666415), (20, 1008533132), (40, 504266566), (71, 284093840), (80, 252133283), (142, 142046920), (284, 71023460), (355, 56818768), (568, 35511730), (710, 28409384), (1136, 17755865), (1420, 14204692), (2840, 7102346), (5680, 3551173)]