2563660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 6031872

約数和(自身を除く): 3468212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 271, 430, 473, 542, 860, 946, 1084, 1355, 1892, 2365, 2710, 2981, 4730, 5420, 5962, 9460, 11653, 11924, 14905, 23306, 29810, 46612, 58265, 59620, 116530, 128183, 233060, 256366, 512732, 640915, 1281830, 2563660]

約数ペア:

[(1, 2563660), (2, 1281830), (4, 640915), (5, 512732), (10, 256366), (11, 233060), (20, 128183), (22, 116530), (43, 59620), (44, 58265), (55, 46612), (86, 29810), (110, 23306), (172, 14905), (215, 11924), (220, 11653), (271, 9460), (430, 5962), (473, 5420), (542, 4730), (860, 2981), (946, 2710), (1084, 2365), (1355, 1892)]