8881520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1657}}^1$

素因数の和:1737

約数の個数: 40

約数和(自身を含む): 20970384

約数和(自身を除く): 12088864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 1657, 2680, 3314, 5360, 6628, 8285, 13256, 16570, 26512, 33140, 66280, 111019, 132560, 222038, 444076, 555095, 888152, 1110190, 1776304, 2220380, 4440760, 8881520]

約数ペア:

[(1, 8881520), (2, 4440760), (4, 2220380), (5, 1776304), (8, 1110190), (10, 888152), (16, 555095), (20, 444076), (40, 222038), (67, 132560), (80, 111019), (134, 66280), (268, 33140), (335, 26512), (536, 16570), (670, 13256), (1072, 8285), (1340, 6628), (1657, 5360), (2680, 3314)]