19167440

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{911}}^1$

素因数の和:1187

約数の個数: 40

約数和(自身を含む): 44782848

約数和(自身を除く): 25615408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 911, 1052, 1315, 1822, 2104, 2630, 3644, 4208, 4555, 5260, 7288, 9110, 10520, 14576, 18220, 21040, 36440, 72880, 239593, 479186, 958372, 1197965, 1916744, 2395930, 3833488, 4791860, 9583720, 19167440]

約数ペア:

[(1, 19167440), (2, 9583720), (4, 4791860), (5, 3833488), (8, 2395930), (10, 1916744), (16, 1197965), (20, 958372), (40, 479186), (80, 239593), (263, 72880), (526, 36440), (911, 21040), (1052, 18220), (1315, 14576), (1822, 10520), (2104, 9110), (2630, 7288), (3644, 5260), (4208, 4555)]