998409890

素因数分解:

$2^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{121609}}^1$

素因数の和:122437

約数の個数: 16

約数和(自身を含む): 1799341560

約数和(自身を除く): 800931670

約数列:

[1, 2, 5, 10, 821, 1642, 4105, 8210, 121609, 243218, 608045, 1216090, 99840989, 199681978, 499204945, 998409890]

約数ペア:

[(1, 998409890), (2, 499204945), (5, 199681978), (10, 99840989), (821, 1216090), (1642, 608045), (4105, 243218), (8210, 121609)]