2745820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1783}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 7193088

約数和(自身を除く): 4447268

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 1783, 3566, 7132, 8915, 12481, 17830, 19613, 24962, 35660, 39226, 49924, 62405, 78452, 98065, 124810, 137291, 196130, 249620, 274582, 392260, 549164, 686455, 1372910, 2745820]

約数ペア:

[(1, 2745820), (2, 1372910), (4, 686455), (5, 549164), (7, 392260), (10, 274582), (11, 249620), (14, 196130), (20, 137291), (22, 124810), (28, 98065), (35, 78452), (44, 62405), (55, 49924), (70, 39226), (77, 35660), (110, 24962), (140, 19613), (154, 17830), (220, 12481), (308, 8915), (385, 7132), (770, 3566), (1540, 1783)]