20178039830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155215691}}^1$

素因数の和:155215711

約数の個数: 16

約数和(自身を含む): 39114354384

約数和(自身を除く): 18936314554

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 155215691, 310431382, 776078455, 1552156910, 2017803983, 4035607966, 10089019915, 20178039830]

約数ペア:

[(1, 20178039830), (2, 10089019915), (5, 4035607966), (10, 2017803983), (13, 1552156910), (26, 776078455), (65, 310431382), (130, 155215691)]