279387745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{677}}^1\times {\mathrm{907}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 413699328

約数和(自身を除く): 134311583

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 677, 907, 3385, 4535, 4739, 6349, 8801, 11791, 23695, 31745, 44005, 58955, 61607, 82537, 308035, 412685, 614039, 3070195, 4298273, 7982507, 21491365, 39912535, 55877549, 279387745]

約数ペア:

[(1, 279387745), (5, 55877549), (7, 39912535), (13, 21491365), (35, 7982507), (65, 4298273), (91, 3070195), (455, 614039), (677, 412685), (907, 308035), (3385, 82537), (4535, 61607), (4739, 58955), (6349, 44005), (8801, 31745), (11791, 23695)]