208617280

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5981}}^1$

素因数の和:6107

約数の個数: 56

約数和(自身を含む): 501411240

約数和(自身を除く): 292793960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 5981, 6976, 8720, 11962, 17440, 23924, 29905, 34880, 47848, 59810, 95696, 119620, 191392, 239240, 382784, 478480, 651929, 956960, 1303858, 1913920, 2607716, 3259645, 5215432, 6519290, 10430864, 13038580, 20861728, 26077160, 41723456, 52154320, 104308640, 208617280]

約数ペア:

[(1, 208617280), (2, 104308640), (4, 52154320), (5, 41723456), (8, 26077160), (10, 20861728), (16, 13038580), (20, 10430864), (32, 6519290), (40, 5215432), (64, 3259645), (80, 2607716), (109, 1913920), (160, 1303858), (218, 956960), (320, 651929), (436, 478480), (545, 382784), (872, 239240), (1090, 191392), (1744, 119620), (2180, 95696), (3488, 59810), (4360, 47848), (5981, 34880), (6976, 29905), (8720, 23924), (11962, 17440)]