849569680

素因数分解:

$2^4\times 5^1\times {\mathrm{10619621}}^1$

素因数の和:10619634

約数の個数: 20

約数和(自身を含む): 1975249692

約数和(自身を除く): 1125680012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10619621, 21239242, 42478484, 53098105, 84956968, 106196210, 169913936, 212392420, 424784840, 849569680]

約数ペア:

[(1, 849569680), (2, 424784840), (4, 212392420), (5, 169913936), (8, 106196210), (10, 84956968), (16, 53098105), (20, 42478484), (40, 21239242), (80, 10619621)]