54378220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209147}}^1$

素因数の和:209169

約数の個数: 24

約数和(自身を含む): 122979024

約数和(自身を除く): 68600804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 209147, 418294, 836588, 1045735, 2091470, 2718911, 4182940, 5437822, 10875644, 13594555, 27189110, 54378220]

約数ペア:

[(1, 54378220), (2, 27189110), (4, 13594555), (5, 10875644), (10, 5437822), (13, 4182940), (20, 2718911), (26, 2091470), (52, 1045735), (65, 836588), (130, 418294), (260, 209147)]