19219840

素因数分解:

$2^7\times 5^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 46818000

約数和(自身を除く): 27598160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 160, 236, 295, 320, 472, 509, 590, 640, 944, 1018, 1180, 1888, 2036, 2360, 2545, 3776, 4072, 4720, 5090, 7552, 8144, 9440, 10180, 16288, 18880, 20360, 30031, 32576, 37760, 40720, 60062, 65152, 81440, 120124, 150155, 162880, 240248, 300310, 325760, 480496, 600620, 960992, 1201240, 1921984, 2402480, 3843968, 4804960, 9609920, 19219840]

約数ペア:

[(1, 19219840), (2, 9609920), (4, 4804960), (5, 3843968), (8, 2402480), (10, 1921984), (16, 1201240), (20, 960992), (32, 600620), (40, 480496), (59, 325760), (64, 300310), (80, 240248), (118, 162880), (128, 150155), (160, 120124), (236, 81440), (295, 65152), (320, 60062), (472, 40720), (509, 37760), (590, 32576), (640, 30031), (944, 20360), (1018, 18880), (1180, 16288), (1888, 10180), (2036, 9440), (2360, 8144), (2545, 7552), (3776, 5090), (4072, 4720)]