7942280

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1097}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 17985240

約数和(自身を除く): 10042960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1097, 1448, 1810, 2194, 3620, 4388, 5485, 7240, 8776, 10970, 21940, 43880, 198557, 397114, 794228, 992785, 1588456, 1985570, 3971140, 7942280]

約数ペア:

[(1, 7942280), (2, 3971140), (4, 1985570), (5, 1588456), (8, 992785), (10, 794228), (20, 397114), (40, 198557), (181, 43880), (362, 21940), (724, 10970), (905, 8776), (1097, 7240), (1448, 5485), (1810, 4388), (2194, 3620)]