280412860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{154073}}^1$

素因数の和:154102

約数の個数: 48

約数和(自身を含む): 724764096

約数和(自身を除く): 444351236

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 154073, 308146, 616292, 770365, 1078511, 1540730, 2002949, 2157022, 3081460, 4005898, 4314044, 5392555, 8011796, 10014745, 10785110, 14020643, 20029490, 21570220, 28041286, 40058980, 56082572, 70103215, 140206430, 280412860]

約数ペア:

[(1, 280412860), (2, 140206430), (4, 70103215), (5, 56082572), (7, 40058980), (10, 28041286), (13, 21570220), (14, 20029490), (20, 14020643), (26, 10785110), (28, 10014745), (35, 8011796), (52, 5392555), (65, 4314044), (70, 4005898), (91, 3081460), (130, 2157022), (140, 2002949), (182, 1540730), (260, 1078511), (364, 770365), (455, 616292), (910, 308146), (1820, 154073)]