19201240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6761}}^1$

素因数の和:6843

約数の個数: 32

約数和(自身を含む): 43817760

約数和(自身を除く): 24616520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6761, 13522, 27044, 33805, 54088, 67610, 135220, 270440, 480031, 960062, 1920124, 2400155, 3840248, 4800310, 9600620, 19201240]

約数ペア:

[(1, 19201240), (2, 9600620), (4, 4800310), (5, 3840248), (8, 2400155), (10, 1920124), (20, 960062), (40, 480031), (71, 270440), (142, 135220), (284, 67610), (355, 54088), (568, 33805), (710, 27044), (1420, 13522), (2840, 6761)]