64376780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247603}}^1$

素因数の和:247625

約数の個数: 24

約数和(自身を含む): 145591152

約数和(自身を除く): 81214372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 247603, 495206, 990412, 1238015, 2476030, 3218839, 4952060, 6437678, 12875356, 16094195, 32188390, 64376780]

約数ペア:

[(1, 64376780), (2, 32188390), (4, 16094195), (5, 12875356), (10, 6437678), (13, 4952060), (20, 3218839), (26, 2476030), (52, 1238015), (65, 990412), (130, 495206), (260, 247603)]