80587910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19997}}^1$

素因数の和:20048

約数の個数: 32

約数和(自身を含む): 161263872

約数和(自身を除く): 80675962

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19997, 39994, 99985, 199970, 259961, 519922, 619907, 1239814, 1299805, 2599610, 3099535, 6199070, 8058791, 16117582, 40293955, 80587910]

約数ペア:

[(1, 80587910), (2, 40293955), (5, 16117582), (10, 8058791), (13, 6199070), (26, 3099535), (31, 2599610), (62, 1299805), (65, 1239814), (130, 619907), (155, 519922), (310, 259961), (403, 199970), (806, 99985), (2015, 39994), (4030, 19997)]