640679770

素因数分解:

$2^1\times 5^1\times {\mathrm{853}}^1\times {\mathrm{75109}}^1$

素因数の和:75969

約数の個数: 16

約数和(自身を含む): 1154590920

約数和(自身を除く): 513911150

約数列:

[1, 2, 5, 10, 853, 1706, 4265, 8530, 75109, 150218, 375545, 751090, 64067977, 128135954, 320339885, 640679770]

約数ペア:

[(1, 640679770), (2, 320339885), (5, 128135954), (10, 64067977), (853, 751090), (1706, 375545), (4265, 150218), (8530, 75109)]