11905280

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 29139264

約数和(自身を除く): 17233984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 131, 142, 160, 256, 262, 284, 320, 355, 524, 568, 640, 655, 710, 1048, 1136, 1280, 1310, 1420, 2096, 2272, 2620, 2840, 4192, 4544, 5240, 5680, 8384, 9088, 9301, 10480, 11360, 16768, 18176, 18602, 20960, 22720, 33536, 37204, 41920, 45440, 46505, 74408, 83840, 90880, 93010, 148816, 167680, 186020, 297632, 372040, 595264, 744080, 1190528, 1488160, 2381056, 2976320, 5952640, 11905280]

約数ペア:

[(1, 11905280), (2, 5952640), (4, 2976320), (5, 2381056), (8, 1488160), (10, 1190528), (16, 744080), (20, 595264), (32, 372040), (40, 297632), (64, 186020), (71, 167680), (80, 148816), (128, 93010), (131, 90880), (142, 83840), (160, 74408), (256, 46505), (262, 45440), (284, 41920), (320, 37204), (355, 33536), (524, 22720), (568, 20960), (640, 18602), (655, 18176), (710, 16768), (1048, 11360), (1136, 10480), (1280, 9301), (1310, 9088), (1420, 8384), (2096, 5680), (2272, 5240), (2620, 4544), (2840, 4192)]