15256780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9907}}^1$

素因数の和:9934

約数の個数: 48

約数和(自身を含む): 39949056

約数和(自身を除く): 24692276

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, 9907, 19814, 39628, 49535, 69349, 99070, 108977, 138698, 198140, 217954, 277396, 346745, 435908, 544885, 693490, 762839, 1089770, 1386980, 1525678, 2179540, 3051356, 3814195, 7628390, 15256780]

約数ペア:

[(1, 15256780), (2, 7628390), (4, 3814195), (5, 3051356), (7, 2179540), (10, 1525678), (11, 1386980), (14, 1089770), (20, 762839), (22, 693490), (28, 544885), (35, 435908), (44, 346745), (55, 277396), (70, 217954), (77, 198140), (110, 138698), (140, 108977), (154, 99070), (220, 69349), (308, 49535), (385, 39628), (770, 19814), (1540, 9907)]