18639752

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 39657600

約数和(自身を除く): 21017848

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 59, 68, 92, 101, 118, 136, 184, 202, 236, 391, 404, 472, 782, 808, 1003, 1357, 1564, 1717, 2006, 2323, 2714, 3128, 3434, 4012, 4646, 5428, 5959, 6868, 8024, 9292, 10856, 11918, 13736, 18584, 23069, 23836, 39491, 46138, 47672, 78982, 92276, 101303, 137057, 157964, 184552, 202606, 274114, 315928, 405212, 548228, 810424, 1096456, 2329969, 4659938, 9319876, 18639752]

約数ペア:

[(1, 18639752), (2, 9319876), (4, 4659938), (8, 2329969), (17, 1096456), (23, 810424), (34, 548228), (46, 405212), (59, 315928), (68, 274114), (92, 202606), (101, 184552), (118, 157964), (136, 137057), (184, 101303), (202, 92276), (236, 78982), (391, 47672), (404, 46138), (472, 39491), (782, 23836), (808, 23069), (1003, 18584), (1357, 13736), (1564, 11918), (1717, 10856), (2006, 9292), (2323, 8024), (2714, 6868), (3128, 5959), (3434, 5428), (4012, 4646)]