20728704

素因数分解:

$2^7\times 3^1\times {\mathrm{23}}^1\times {\mathrm{2347}}^1$

素因数の和:2387

約数の個数: 64

約数和(自身を含む): 57479040

約数和(自身を除く): 36750336

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 128, 138, 184, 192, 276, 368, 384, 552, 736, 1104, 1472, 2208, 2347, 2944, 4416, 4694, 7041, 8832, 9388, 14082, 18776, 28164, 37552, 53981, 56328, 75104, 107962, 112656, 150208, 161943, 215924, 225312, 300416, 323886, 431848, 450624, 647772, 863696, 901248, 1295544, 1727392, 2591088, 3454784, 5182176, 6909568, 10364352, 20728704]

約数ペア:

[(1, 20728704), (2, 10364352), (3, 6909568), (4, 5182176), (6, 3454784), (8, 2591088), (12, 1727392), (16, 1295544), (23, 901248), (24, 863696), (32, 647772), (46, 450624), (48, 431848), (64, 323886), (69, 300416), (92, 225312), (96, 215924), (128, 161943), (138, 150208), (184, 112656), (192, 107962), (276, 75104), (368, 56328), (384, 53981), (552, 37552), (736, 28164), (1104, 18776), (1472, 14082), (2208, 9388), (2347, 8832), (2944, 7041), (4416, 4694)]