40399090

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{30839}}^1$

素因数の和:30977

約数の個数: 16

約数和(自身を含む): 73275840

約数和(自身を除く): 32876750

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 30839, 61678, 154195, 308390, 4039909, 8079818, 20199545, 40399090]

約数ペア:

[(1, 40399090), (2, 20199545), (5, 8079818), (10, 4039909), (131, 308390), (262, 154195), (655, 61678), (1310, 30839)]