18204940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70019}}^1$

素因数の和:70041

約数の個数: 24

約数和(自身を含む): 41171760

約数和(自身を除く): 22966820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70019, 140038, 280076, 350095, 700190, 910247, 1400380, 1820494, 3640988, 4551235, 9102470, 18204940]

約数ペア:

[(1, 18204940), (2, 9102470), (4, 4551235), (5, 3640988), (10, 1820494), (13, 1400380), (20, 910247), (26, 700190), (52, 350095), (65, 280076), (130, 140038), (260, 70019)]