64689875

素因数分解:

$5^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 84509568

約数和(自身を除く): 19819693

約数列:

[1, 5, 25, 37, 71, 125, 185, 197, 355, 925, 985, 1775, 2627, 4625, 4925, 7289, 8875, 13135, 13987, 24625, 36445, 65675, 69935, 182225, 328375, 349675, 517519, 911125, 1748375, 2587595, 12937975, 64689875]

約数ペア:

[(1, 64689875), (5, 12937975), (25, 2587595), (37, 1748375), (71, 911125), (125, 517519), (185, 349675), (197, 328375), (355, 182225), (925, 69935), (985, 65675), (1775, 36445), (2627, 24625), (4625, 13987), (4925, 13135), (7289, 8875)]