638346056

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 1306368000

約数和(自身を除く): 668021944

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 239, 328, 478, 479, 697, 956, 958, 1394, 1912, 1916, 2788, 3832, 4063, 5576, 8126, 8143, 9799, 16252, 16286, 19598, 19639, 32504, 32572, 39196, 39278, 65144, 78392, 78556, 114481, 157112, 166583, 228962, 333166, 333863, 457924, 666332, 667726, 915848, 1332664, 1335452, 1946177, 2670904, 3892354, 4693721, 7784708, 9387442, 15569416, 18774884, 37549768, 79793257, 159586514, 319173028, 638346056]

約数ペア:

[(1, 638346056), (2, 319173028), (4, 159586514), (8, 79793257), (17, 37549768), (34, 18774884), (41, 15569416), (68, 9387442), (82, 7784708), (136, 4693721), (164, 3892354), (239, 2670904), (328, 1946177), (478, 1335452), (479, 1332664), (697, 915848), (956, 667726), (958, 666332), (1394, 457924), (1912, 333863), (1916, 333166), (2788, 228962), (3832, 166583), (4063, 157112), (5576, 114481), (8126, 78556), (8143, 78392), (9799, 65144), (16252, 39278), (16286, 39196), (19598, 32572), (19639, 32504)]