280253440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:583

約数の個数: 88

約数和(自身を含む): 679145472

約数和(自身を除く): 398892032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 431, 508, 512, 635, 640, 862, 1016, 1024, 1270, 1280, 1724, 2032, 2155, 2540, 2560, 3448, 4064, 4310, 5080, 5120, 6896, 8128, 8620, 10160, 13792, 16256, 17240, 20320, 27584, 32512, 34480, 40640, 54737, 55168, 65024, 68960, 81280, 109474, 110336, 130048, 137920, 162560, 218948, 220672, 273685, 275840, 325120, 437896, 441344, 547370, 551680, 650240, 875792, 1094740, 1103360, 1751584, 2189480, 2206720, 3503168, 4378960, 7006336, 8757920, 14012672, 17515840, 28025344, 35031680, 56050688, 70063360, 140126720, 280253440]

約数ペア:

[(1, 280253440), (2, 140126720), (4, 70063360), (5, 56050688), (8, 35031680), (10, 28025344), (16, 17515840), (20, 14012672), (32, 8757920), (40, 7006336), (64, 4378960), (80, 3503168), (127, 2206720), (128, 2189480), (160, 1751584), (254, 1103360), (256, 1094740), (320, 875792), (431, 650240), (508, 551680), (512, 547370), (635, 441344), (640, 437896), (862, 325120), (1016, 275840), (1024, 273685), (1270, 220672), (1280, 218948), (1724, 162560), (2032, 137920), (2155, 130048), (2540, 110336), (2560, 109474), (3448, 81280), (4064, 68960), (4310, 65024), (5080, 55168), (5120, 54737), (6896, 40640), (8128, 34480), (8620, 32512), (10160, 27584), (13792, 20320), (16256, 17240)]