1990282805

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{11087}}^1$

素因数の和:11345

約数の個数: 32

約数和(自身を含む): 2861236224

約数和(自身を除く): 870953419

約数列:

[1, 5, 7, 23, 35, 115, 161, 223, 805, 1115, 1561, 5129, 7805, 11087, 25645, 35903, 55435, 77609, 179515, 255001, 388045, 1275005, 1785007, 2472401, 8925035, 12362005, 17306807, 56865223, 86534035, 284326115, 398056561, 1990282805]

約数ペア:

[(1, 1990282805), (5, 398056561), (7, 284326115), (23, 86534035), (35, 56865223), (115, 17306807), (161, 12362005), (223, 8925035), (805, 2472401), (1115, 1785007), (1561, 1275005), (5129, 388045), (7805, 255001), (11087, 179515), (25645, 77609), (35903, 55435)]