65701840

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4127}}^1$

素因数の和:4339

約数の個数: 40

約数和(自身を含む): 153561600

約数和(自身を除く): 87859760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 4127, 7960, 8254, 15920, 16508, 20635, 33016, 41270, 66032, 82540, 165080, 330160, 821273, 1642546, 3285092, 4106365, 6570184, 8212730, 13140368, 16425460, 32850920, 65701840]

約数ペア:

[(1, 65701840), (2, 32850920), (4, 16425460), (5, 13140368), (8, 8212730), (10, 6570184), (16, 4106365), (20, 3285092), (40, 1642546), (80, 821273), (199, 330160), (398, 165080), (796, 82540), (995, 66032), (1592, 41270), (1990, 33016), (3184, 20635), (3980, 16508), (4127, 15920), (7960, 8254)]