20098585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 27310752

約数和(自身を除く): 7212167

約数列:

[1, 5, 13, 37, 61, 65, 137, 185, 305, 481, 685, 793, 1781, 2257, 2405, 3965, 5069, 8357, 8905, 11285, 25345, 29341, 41785, 65897, 108641, 146705, 309209, 329485, 543205, 1546045, 4019717, 20098585]

約数ペア:

[(1, 20098585), (5, 4019717), (13, 1546045), (37, 543205), (61, 329485), (65, 309209), (137, 146705), (185, 108641), (305, 65897), (481, 41785), (685, 29341), (793, 25345), (1781, 11285), (2257, 8905), (2405, 8357), (3965, 5069)]