261567176

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 541537920

約数和(自身を除く): 279970744

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 131, 146, 262, 263, 292, 524, 526, 584, 949, 1048, 1052, 1703, 1898, 2104, 3406, 3419, 3796, 6812, 6838, 7592, 9563, 13624, 13676, 19126, 19199, 27352, 34453, 38252, 38398, 68906, 76504, 76796, 124319, 137812, 153592, 248638, 249587, 275624, 447889, 497276, 499174, 895778, 994552, 998348, 1791556, 1996696, 2515069, 3583112, 5030138, 10060276, 20120552, 32695897, 65391794, 130783588, 261567176]

約数ペア:

[(1, 261567176), (2, 130783588), (4, 65391794), (8, 32695897), (13, 20120552), (26, 10060276), (52, 5030138), (73, 3583112), (104, 2515069), (131, 1996696), (146, 1791556), (262, 998348), (263, 994552), (292, 895778), (524, 499174), (526, 497276), (584, 447889), (949, 275624), (1048, 249587), (1052, 248638), (1703, 153592), (1898, 137812), (2104, 124319), (3406, 76796), (3419, 76504), (3796, 68906), (6812, 38398), (6838, 38252), (7592, 34453), (9563, 27352), (13624, 19199), (13676, 19126)]