278981120

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9907}}^1$

素因数の和:9941

約数の個数: 80

約数和(自身を含む): 729783648

約数和(自身を除く): 450802528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1280, 1408, 1760, 2560, 2816, 3520, 5632, 7040, 9907, 14080, 19814, 28160, 39628, 49535, 79256, 99070, 108977, 158512, 198140, 217954, 317024, 396280, 435908, 544885, 634048, 792560, 871816, 1089770, 1268096, 1585120, 1743632, 2179540, 2536192, 3170240, 3487264, 4359080, 5072384, 6340480, 6974528, 8718160, 12680960, 13949056, 17436320, 25361920, 27898112, 34872640, 55796224, 69745280, 139490560, 278981120]

約数ペア:

[(1, 278981120), (2, 139490560), (4, 69745280), (5, 55796224), (8, 34872640), (10, 27898112), (11, 25361920), (16, 17436320), (20, 13949056), (22, 12680960), (32, 8718160), (40, 6974528), (44, 6340480), (55, 5072384), (64, 4359080), (80, 3487264), (88, 3170240), (110, 2536192), (128, 2179540), (160, 1743632), (176, 1585120), (220, 1268096), (256, 1089770), (320, 871816), (352, 792560), (440, 634048), (512, 544885), (640, 435908), (704, 396280), (880, 317024), (1280, 217954), (1408, 198140), (1760, 158512), (2560, 108977), (2816, 99070), (3520, 79256), (5632, 49535), (7040, 39628), (9907, 28160), (14080, 19814)]