245720784

素因数分解:

$2^4\times 3^1\times {\mathrm{257}}^1\times {\mathrm{19919}}^1$

素因数の和:20187

約数の個数: 40

約数和(自身を含む): 637280640

約数和(自身を除く): 391559856

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 257, 514, 771, 1028, 1542, 2056, 3084, 4112, 6168, 12336, 19919, 39838, 59757, 79676, 119514, 159352, 239028, 318704, 478056, 956112, 5119183, 10238366, 15357549, 20476732, 30715098, 40953464, 61430196, 81906928, 122860392, 245720784]

約数ペア:

[(1, 245720784), (2, 122860392), (3, 81906928), (4, 61430196), (6, 40953464), (8, 30715098), (12, 20476732), (16, 15357549), (24, 10238366), (48, 5119183), (257, 956112), (514, 478056), (771, 318704), (1028, 239028), (1542, 159352), (2056, 119514), (3084, 79676), (4112, 59757), (6168, 39838), (12336, 19919)]