78131840

素因数分解:

$2^7\times 5^1\times {\mathrm{122081}}^1$

素因数の和:122100

約数の個数: 32

約数和(自身を含む): 186785460

約数和(自身を除く): 108653620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 122081, 244162, 488324, 610405, 976648, 1220810, 1953296, 2441620, 3906592, 4883240, 7813184, 9766480, 15626368, 19532960, 39065920, 78131840]

約数ペア:

[(1, 78131840), (2, 39065920), (4, 19532960), (5, 15626368), (8, 9766480), (10, 7813184), (16, 4883240), (20, 3906592), (32, 2441620), (40, 1953296), (64, 1220810), (80, 976648), (128, 610405), (160, 488324), (320, 244162), (640, 122081)]