1561456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{7507}}^1$

素因数の和:7528

約数の個数: 20

約数和(自身を含む): 3258472

約数和(自身を除く): 1697016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 7507, 15014, 30028, 60056, 97591, 120112, 195182, 390364, 780728, 1561456]

約数ペア:

[(1, 1561456), (2, 780728), (4, 390364), (8, 195182), (13, 120112), (16, 97591), (26, 60056), (52, 30028), (104, 15014), (208, 7507)]