1998809072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{309989}}^1$

素因数の和:310041

約数の個数: 40

約数和(自身を含む): 4305141120

約数和(自身を除く): 2306332048

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 309989, 619978, 1239956, 2479912, 4029857, 4959824, 8059714, 9609659, 16119428, 19219318, 32238856, 38438636, 64477712, 76877272, 124925567, 153754544, 249851134, 499702268, 999404536, 1998809072]

約数ペア:

[(1, 1998809072), (2, 999404536), (4, 499702268), (8, 249851134), (13, 153754544), (16, 124925567), (26, 76877272), (31, 64477712), (52, 38438636), (62, 32238856), (104, 19219318), (124, 16119428), (208, 9609659), (248, 8059714), (403, 4959824), (496, 4029857), (806, 2479912), (1612, 1239956), (3224, 619978), (6448, 309989)]