20235214640

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{900143}}^1$

素因数の和:900437

約数の個数: 40

約数和(自身を含む): 47214353088

約数和(自身を除く): 26979138448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 4496, 5620, 11240, 22480, 900143, 1800286, 3600572, 4500715, 7201144, 9001430, 14402288, 18002860, 36005720, 72011440, 252940183, 505880366, 1011760732, 1264700915, 2023521464, 2529401830, 4047042928, 5058803660, 10117607320, 20235214640]

約数ペア:

[(1, 20235214640), (2, 10117607320), (4, 5058803660), (5, 4047042928), (8, 2529401830), (10, 2023521464), (16, 1264700915), (20, 1011760732), (40, 505880366), (80, 252940183), (281, 72011440), (562, 36005720), (1124, 18002860), (1405, 14402288), (2248, 9001430), (2810, 7201144), (4496, 4500715), (5620, 3600572), (11240, 1800286), (22480, 900143)]