3900280

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{347}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 8832240

約数和(自身を除く): 4931960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 347, 562, 694, 1124, 1388, 1405, 1735, 2248, 2776, 2810, 3470, 5620, 6940, 11240, 13880, 97507, 195014, 390028, 487535, 780056, 975070, 1950140, 3900280]

約数ペア:

[(1, 3900280), (2, 1950140), (4, 975070), (5, 780056), (8, 487535), (10, 390028), (20, 195014), (40, 97507), (281, 13880), (347, 11240), (562, 6940), (694, 5620), (1124, 3470), (1388, 2810), (1405, 2776), (1735, 2248)]