320425640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{276229}}^1$

素因数の和:276269

約数の個数: 32

約数和(自身を含む): 745821000

約数和(自身を除く): 425395360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 276229, 552458, 1104916, 1381145, 2209832, 2762290, 5524580, 8010641, 11049160, 16021282, 32042564, 40053205, 64085128, 80106410, 160212820, 320425640]

約数ペア:

[(1, 320425640), (2, 160212820), (4, 80106410), (5, 64085128), (8, 40053205), (10, 32042564), (20, 16021282), (29, 11049160), (40, 8010641), (58, 5524580), (116, 2762290), (145, 2209832), (232, 1381145), (290, 1104916), (580, 552458), (1160, 276229)]