20623015

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 29500416

約数和(自身を除く): 8877401

約数列:

[1, 5, 7, 35, 43, 71, 193, 215, 301, 355, 497, 965, 1351, 1505, 2485, 3053, 6755, 8299, 13703, 15265, 21371, 41495, 58093, 68515, 95921, 106855, 290465, 479605, 589229, 2946145, 4124603, 20623015]

約数ペア:

[(1, 20623015), (5, 4124603), (7, 2946145), (35, 589229), (43, 479605), (71, 290465), (193, 106855), (215, 95921), (301, 68515), (355, 58093), (497, 41495), (965, 21371), (1351, 15265), (1505, 13703), (2485, 8299), (3053, 6755)]