291217780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{297161}}^1$

素因数の和:297184

約数の個数: 36

約数和(自身を含む): 711405828

約数和(自身を除く): 420188048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 297161, 594322, 1188644, 1485805, 2080127, 2971610, 4160254, 5943220, 8320508, 10400635, 14560889, 20801270, 29121778, 41602540, 58243556, 72804445, 145608890, 291217780]

約数ペア:

[(1, 291217780), (2, 145608890), (4, 72804445), (5, 58243556), (7, 41602540), (10, 29121778), (14, 20801270), (20, 14560889), (28, 10400635), (35, 8320508), (49, 5943220), (70, 4160254), (98, 2971610), (140, 2080127), (196, 1485805), (245, 1188644), (490, 594322), (980, 297161)]