20070520

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7489}}^1$

素因数の和:7567

約数の個数: 32

約数和(自身を含む): 45838800

約数和(自身を除く): 25768280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7489, 14978, 29956, 37445, 59912, 74890, 149780, 299560, 501763, 1003526, 2007052, 2508815, 4014104, 5017630, 10035260, 20070520]

約数ペア:

[(1, 20070520), (2, 10035260), (4, 5017630), (5, 4014104), (8, 2508815), (10, 2007052), (20, 1003526), (40, 501763), (67, 299560), (134, 149780), (268, 74890), (335, 59912), (536, 37445), (670, 29956), (1340, 14978), (2680, 7489)]