13081240

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2083}}^1$

素因数の和:2251

約数の個数: 32

約数和(自身を含む): 29634480

約数和(自身を除く): 16553240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2083, 3140, 4166, 6280, 8332, 10415, 16664, 20830, 41660, 83320, 327031, 654062, 1308124, 1635155, 2616248, 3270310, 6540620, 13081240]

約数ペア:

[(1, 13081240), (2, 6540620), (4, 3270310), (5, 2616248), (8, 1635155), (10, 1308124), (20, 654062), (40, 327031), (157, 83320), (314, 41660), (628, 20830), (785, 16664), (1256, 10415), (1570, 8332), (2083, 6280), (3140, 4166)]