64921805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 87091200

約数和(自身を除く): 22169395

約数列:

[1, 5, 13, 47, 65, 79, 235, 269, 395, 611, 1027, 1345, 3055, 3497, 3713, 5135, 12643, 17485, 18565, 21251, 48269, 63215, 106255, 164359, 241345, 276263, 821795, 998797, 1381315, 4993985, 12984361, 64921805]

約数ペア:

[(1, 64921805), (5, 12984361), (13, 4993985), (47, 1381315), (65, 998797), (79, 821795), (235, 276263), (269, 241345), (395, 164359), (611, 106255), (1027, 63215), (1345, 48269), (3055, 21251), (3497, 18565), (3713, 17485), (5135, 12643)]