1990849280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{222193}}^1$

素因数の和:222221

約数の個数: 72

約数和(自身を含む): 5449974432

約数和(自身を除く): 3459125152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 222193, 444386, 888772, 1110965, 1555351, 1777544, 2221930, 3110702, 3555088, 4443860, 6221404, 7110176, 7776755, 8887720, 12442808, 14220352, 15553510, 17775440, 24885616, 28440704, 31107020, 35550880, 49771232, 56881408, 62214040, 71101760, 99542464, 124428080, 142203520, 199084928, 248856160, 284407040, 398169856, 497712320, 995424640, 1990849280]

約数ペア:

[(1, 1990849280), (2, 995424640), (4, 497712320), (5, 398169856), (7, 284407040), (8, 248856160), (10, 199084928), (14, 142203520), (16, 124428080), (20, 99542464), (28, 71101760), (32, 62214040), (35, 56881408), (40, 49771232), (56, 35550880), (64, 31107020), (70, 28440704), (80, 24885616), (112, 17775440), (128, 15553510), (140, 14220352), (160, 12442808), (224, 8887720), (256, 7776755), (280, 7110176), (320, 6221404), (448, 4443860), (560, 3555088), (640, 3110702), (896, 2221930), (1120, 1777544), (1280, 1555351), (1792, 1110965), (2240, 888772), (4480, 444386), (8960, 222193)]