19436720

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1609}}^1$

素因数の和:1773

約数の個数: 40

約数和(自身を含む): 45517920

約数和(自身を除く): 26081200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 1609, 2416, 3020, 3218, 6040, 6436, 8045, 12080, 12872, 16090, 25744, 32180, 64360, 128720, 242959, 485918, 971836, 1214795, 1943672, 2429590, 3887344, 4859180, 9718360, 19436720]

約数ペア:

[(1, 19436720), (2, 9718360), (4, 4859180), (5, 3887344), (8, 2429590), (10, 1943672), (16, 1214795), (20, 971836), (40, 485918), (80, 242959), (151, 128720), (302, 64360), (604, 32180), (755, 25744), (1208, 16090), (1510, 12872), (1609, 12080), (2416, 8045), (3020, 6436), (3218, 6040)]