65486920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 156240000

約数和(自身を除く): 90753080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 199, 380, 398, 433, 760, 796, 866, 995, 1592, 1732, 1990, 2165, 3464, 3781, 3980, 4330, 7562, 7960, 8227, 8660, 15124, 16454, 17320, 18905, 30248, 32908, 37810, 41135, 65816, 75620, 82270, 86167, 151240, 164540, 172334, 329080, 344668, 430835, 689336, 861670, 1637173, 1723340, 3274346, 3446680, 6548692, 8185865, 13097384, 16371730, 32743460, 65486920]

約数ペア:

[(1, 65486920), (2, 32743460), (4, 16371730), (5, 13097384), (8, 8185865), (10, 6548692), (19, 3446680), (20, 3274346), (38, 1723340), (40, 1637173), (76, 861670), (95, 689336), (152, 430835), (190, 344668), (199, 329080), (380, 172334), (398, 164540), (433, 151240), (760, 86167), (796, 82270), (866, 75620), (995, 65816), (1592, 41135), (1732, 37810), (1990, 32908), (2165, 30248), (3464, 18905), (3781, 17320), (3980, 16454), (4330, 15124), (7562, 8660), (7960, 8227)]