20161386440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38771897}}^1$

素因数の和:38771921

約数の個数: 32

約数和(自身を含む): 48852591480

約数和(自身を除く): 28691205040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38771897, 77543794, 155087588, 193859485, 310175176, 387718970, 504034661, 775437940, 1008069322, 1550875880, 2016138644, 2520173305, 4032277288, 5040346610, 10080693220, 20161386440]

約数ペア:

[(1, 20161386440), (2, 10080693220), (4, 5040346610), (5, 4032277288), (8, 2520173305), (10, 2016138644), (13, 1550875880), (20, 1008069322), (26, 775437940), (40, 504034661), (52, 387718970), (65, 310175176), (104, 193859485), (130, 155087588), (260, 77543794), (520, 38771897)]