515480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{263}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 1354320

約数和(自身を除く): 838840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 263, 280, 392, 490, 526, 980, 1052, 1315, 1841, 1960, 2104, 2630, 3682, 5260, 7364, 9205, 10520, 12887, 14728, 18410, 25774, 36820, 51548, 64435, 73640, 103096, 128870, 257740, 515480]

約数ペア:

[(1, 515480), (2, 257740), (4, 128870), (5, 103096), (7, 73640), (8, 64435), (10, 51548), (14, 36820), (20, 25774), (28, 18410), (35, 14728), (40, 12887), (49, 10520), (56, 9205), (70, 7364), (98, 5260), (140, 3682), (196, 2630), (245, 2104), (263, 1960), (280, 1841), (392, 1315), (490, 1052), (526, 980)]