1990309575680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{388732339}}^1$

素因数の和:388732364

約数の個数: 44

約数和(自身を含む): 4774410599880

約数和(自身を除く): 2784101024200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 388732339, 777464678, 1554929356, 1943661695, 3109858712, 3887323390, 6219717424, 7774646780, 12439434848, 15549293560, 24878869696, 31098587120, 49757739392, 62197174240, 99515478784, 124394348480, 199030957568, 248788696960, 398061915136, 497577393920, 995154787840, 1990309575680]

約数ペア:

[(1, 1990309575680), (2, 995154787840), (4, 497577393920), (5, 398061915136), (8, 248788696960), (10, 199030957568), (16, 124394348480), (20, 99515478784), (32, 62197174240), (40, 49757739392), (64, 31098587120), (80, 24878869696), (128, 15549293560), (160, 12439434848), (256, 7774646780), (320, 6219717424), (512, 3887323390), (640, 3109858712), (1024, 1943661695), (1280, 1554929356), (2560, 777464678), (5120, 388732339)]