21422472880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4389851}}^1$

素因数の和:4389925

約数の個数: 40

約数和(自身を含む): 50623773264

約数和(自身を除く): 29201300384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 4389851, 8779702, 17559404, 21949255, 35118808, 43898510, 70237616, 87797020, 175594040, 267780911, 351188080, 535561822, 1071123644, 1338904555, 2142247288, 2677809110, 4284494576, 5355618220, 10711236440, 21422472880]

約数ペア:

[(1, 21422472880), (2, 10711236440), (4, 5355618220), (5, 4284494576), (8, 2677809110), (10, 2142247288), (16, 1338904555), (20, 1071123644), (40, 535561822), (61, 351188080), (80, 267780911), (122, 175594040), (244, 87797020), (305, 70237616), (488, 43898510), (610, 35118808), (976, 21949255), (1220, 17559404), (2440, 8779702), (4880, 4389851)]