77920960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18731}}^1$

素因数の和:18761

約数の個数: 56

約数和(自身を含む): 199832976

約数和(自身を除く): 121912016

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, 18731, 37462, 74924, 93655, 149848, 187310, 243503, 299696, 374620, 487006, 599392, 749240, 974012, 1198784, 1217515, 1498480, 1948024, 2435030, 2996960, 3896048, 4870060, 5993920, 7792096, 9740120, 15584192, 19480240, 38960480, 77920960]

約数ペア:

[(1, 77920960), (2, 38960480), (4, 19480240), (5, 15584192), (8, 9740120), (10, 7792096), (13, 5993920), (16, 4870060), (20, 3896048), (26, 2996960), (32, 2435030), (40, 1948024), (52, 1498480), (64, 1217515), (65, 1198784), (80, 974012), (104, 749240), (130, 599392), (160, 487006), (208, 374620), (260, 299696), (320, 243503), (416, 187310), (520, 149848), (832, 93655), (1040, 74924), (2080, 37462), (4160, 18731)]