8242840

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{821}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 18642960

約数和(自身を除く): 10400120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 821, 1004, 1255, 1642, 2008, 2510, 3284, 4105, 5020, 6568, 8210, 10040, 16420, 32840, 206071, 412142, 824284, 1030355, 1648568, 2060710, 4121420, 8242840]

約数ペア:

[(1, 8242840), (2, 4121420), (4, 2060710), (5, 1648568), (8, 1030355), (10, 824284), (20, 412142), (40, 206071), (251, 32840), (502, 16420), (821, 10040), (1004, 8210), (1255, 6568), (1642, 5020), (2008, 4105), (2510, 3284)]