261728896

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:298

約数の個数: 128

約数和(自身を含む): 623750400

約数和(自身を除く): 362021504

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 79, 88, 104, 128, 143, 158, 176, 181, 208, 286, 316, 352, 362, 416, 572, 632, 704, 724, 832, 869, 1027, 1144, 1264, 1408, 1448, 1664, 1738, 1991, 2054, 2288, 2353, 2528, 2896, 3476, 3982, 4108, 4576, 4706, 5056, 5792, 6952, 7964, 8216, 9152, 9412, 10112, 11297, 11584, 13904, 14299, 15928, 16432, 18304, 18824, 22594, 23168, 25883, 27808, 28598, 31856, 32864, 37648, 45188, 51766, 55616, 57196, 63712, 65728, 75296, 90376, 103532, 111232, 114392, 127424, 131456, 150592, 157289, 180752, 185887, 207064, 228784, 254848, 301184, 314578, 361504, 371774, 414128, 457568, 629156, 723008, 743548, 828256, 915136, 1258312, 1446016, 1487096, 1656512, 1830272, 2044757, 2516624, 2974192, 3313024, 4089514, 5033248, 5948384, 8179028, 10066496, 11896768, 16358056, 20132992, 23793536, 32716112, 65432224, 130864448, 261728896]

約数ペア:

[(1, 261728896), (2, 130864448), (4, 65432224), (8, 32716112), (11, 23793536), (13, 20132992), (16, 16358056), (22, 11896768), (26, 10066496), (32, 8179028), (44, 5948384), (52, 5033248), (64, 4089514), (79, 3313024), (88, 2974192), (104, 2516624), (128, 2044757), (143, 1830272), (158, 1656512), (176, 1487096), (181, 1446016), (208, 1258312), (286, 915136), (316, 828256), (352, 743548), (362, 723008), (416, 629156), (572, 457568), (632, 414128), (704, 371774), (724, 361504), (832, 314578), (869, 301184), (1027, 254848), (1144, 228784), (1264, 207064), (1408, 185887), (1448, 180752), (1664, 157289), (1738, 150592), (1991, 131456), (2054, 127424), (2288, 114392), (2353, 111232), (2528, 103532), (2896, 90376), (3476, 75296), (3982, 65728), (4108, 63712), (4576, 57196), (4706, 55616), (5056, 51766), (5792, 45188), (6952, 37648), (7964, 32864), (8216, 31856), (9152, 28598), (9412, 27808), (10112, 25883), (11297, 23168), (11584, 22594), (13904, 18824), (14299, 18304), (15928, 16432)]