20420584

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 39168000

約数和(自身を除く): 18747416

約数列:

[1, 2, 4, 8, 101, 127, 199, 202, 254, 398, 404, 508, 796, 808, 1016, 1592, 12827, 20099, 25273, 25654, 40198, 50546, 51308, 80396, 101092, 102616, 160792, 202184, 2552573, 5105146, 10210292, 20420584]

約数ペア:

[(1, 20420584), (2, 10210292), (4, 5105146), (8, 2552573), (101, 202184), (127, 160792), (199, 102616), (202, 101092), (254, 80396), (398, 51308), (404, 50546), (508, 40198), (796, 25654), (808, 25273), (1016, 20099), (1592, 12827)]