20287064

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5407}}^1$

素因数の和:5487

約数の個数: 32

約数和(自身を含む): 44129280

約数和(自身を除く): 23842216

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5407, 10814, 21628, 37849, 43256, 75698, 151396, 302792, 362269, 724538, 1449076, 2535883, 2898152, 5071766, 10143532, 20287064]

約数ペア:

[(1, 20287064), (2, 10143532), (4, 5071766), (7, 2898152), (8, 2535883), (14, 1449076), (28, 724538), (56, 362269), (67, 302792), (134, 151396), (268, 75698), (469, 43256), (536, 37849), (938, 21628), (1876, 10814), (3752, 5407)]