201276520

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{3203}}^1$

素因数の和:4785

約数の個数: 32

約数和(自身を含む): 453301920

約数和(自身を除く): 252025400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 3142, 3203, 6284, 6406, 7855, 12568, 12812, 15710, 16015, 25624, 31420, 32030, 62840, 64060, 128120, 5031913, 10063826, 20127652, 25159565, 40255304, 50319130, 100638260, 201276520]

約数ペア:

[(1, 201276520), (2, 100638260), (4, 50319130), (5, 40255304), (8, 25159565), (10, 20127652), (20, 10063826), (40, 5031913), (1571, 128120), (3142, 64060), (3203, 62840), (6284, 32030), (6406, 31420), (7855, 25624), (12568, 16015), (12812, 15710)]