261376180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1005293}}^1$

素因数の和:1005315

約数の個数: 24

約数和(自身を含む): 591112872

約数和(自身を除く): 329736692

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1005293, 2010586, 4021172, 5026465, 10052930, 13068809, 20105860, 26137618, 52275236, 65344045, 130688090, 261376180]

約数ペア:

[(1, 261376180), (2, 130688090), (4, 65344045), (5, 52275236), (10, 26137618), (13, 20105860), (20, 13068809), (26, 10052930), (52, 5026465), (65, 4021172), (130, 2010586), (260, 1005293)]