1280507690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{237571}}^1$

素因数の和:237603

約数の個数: 48

約数和(自身を含む): 2924986464

約数和(自身を除く): 1644478774

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 5390, 237571, 475142, 1187855, 1662997, 2375710, 2613281, 3325994, 5226562, 8314985, 11640979, 13066405, 16629970, 18292967, 23281958, 26132810, 36585934, 58204895, 91464835, 116409790, 128050769, 182929670, 256101538, 640253845, 1280507690]

約数ペア:

[(1, 1280507690), (2, 640253845), (5, 256101538), (7, 182929670), (10, 128050769), (11, 116409790), (14, 91464835), (22, 58204895), (35, 36585934), (49, 26132810), (55, 23281958), (70, 18292967), (77, 16629970), (98, 13066405), (110, 11640979), (154, 8314985), (245, 5226562), (385, 3325994), (490, 2613281), (539, 2375710), (770, 1662997), (1078, 1187855), (2695, 475142), (5390, 237571)]