13037480

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{821}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 29444040

約数和(自身を除く): 16406560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 821, 1588, 1642, 1985, 3176, 3284, 3970, 4105, 6568, 7940, 8210, 15880, 16420, 32840, 325937, 651874, 1303748, 1629685, 2607496, 3259370, 6518740, 13037480]

約数ペア:

[(1, 13037480), (2, 6518740), (4, 3259370), (5, 2607496), (8, 1629685), (10, 1303748), (20, 651874), (40, 325937), (397, 32840), (794, 16420), (821, 15880), (1588, 8210), (1642, 7940), (1985, 6568), (3176, 4105), (3284, 3970)]