1804180

素因数分解:

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

素因数の和:293

約数の個数: 48

約数和(自身を含む): 4435200

約数和(自身を除く): 2631020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 263, 343, 490, 526, 686, 980, 1052, 1315, 1372, 1715, 1841, 2630, 3430, 3682, 5260, 6860, 7364, 9205, 12887, 18410, 25774, 36820, 51548, 64435, 90209, 128870, 180418, 257740, 360836, 451045, 902090, 1804180]

約数ペア:

[(1, 1804180), (2, 902090), (4, 451045), (5, 360836), (7, 257740), (10, 180418), (14, 128870), (20, 90209), (28, 64435), (35, 51548), (49, 36820), (70, 25774), (98, 18410), (140, 12887), (196, 9205), (245, 7364), (263, 6860), (343, 5260), (490, 3682), (526, 3430), (686, 2630), (980, 1841), (1052, 1715), (1315, 1372)]