16449280

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 40176864

約数和(自身を除く): 23727584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 181, 256, 284, 320, 355, 362, 568, 640, 710, 724, 905, 1136, 1280, 1420, 1448, 1810, 2272, 2840, 2896, 3620, 4544, 5680, 5792, 7240, 9088, 11360, 11584, 12851, 14480, 18176, 22720, 23168, 25702, 28960, 45440, 46336, 51404, 57920, 64255, 90880, 102808, 115840, 128510, 205616, 231680, 257020, 411232, 514040, 822464, 1028080, 1644928, 2056160, 3289856, 4112320, 8224640, 16449280]

約数ペア:

[(1, 16449280), (2, 8224640), (4, 4112320), (5, 3289856), (8, 2056160), (10, 1644928), (16, 1028080), (20, 822464), (32, 514040), (40, 411232), (64, 257020), (71, 231680), (80, 205616), (128, 128510), (142, 115840), (160, 102808), (181, 90880), (256, 64255), (284, 57920), (320, 51404), (355, 46336), (362, 45440), (568, 28960), (640, 25702), (710, 23168), (724, 22720), (905, 18176), (1136, 14480), (1280, 12851), (1420, 11584), (1448, 11360), (1810, 9088), (2272, 7240), (2840, 5792), (2896, 5680), (3620, 4544)]