28726852

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 64648640

約数和(自身を除く): 35921788

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 61, 77, 121, 122, 139, 154, 242, 244, 278, 308, 427, 484, 556, 671, 847, 854, 973, 1342, 1529, 1694, 1708, 1946, 2684, 3058, 3388, 3892, 4697, 6116, 7381, 8479, 9394, 10703, 14762, 16819, 16958, 18788, 21406, 29524, 33638, 33916, 42812, 51667, 59353, 67276, 93269, 103334, 117733, 118706, 186538, 206668, 235466, 237412, 373076, 470932, 652883, 1025959, 1305766, 2051918, 2611532, 4103836, 7181713, 14363426, 28726852]

約数ペア:

[(1, 28726852), (2, 14363426), (4, 7181713), (7, 4103836), (11, 2611532), (14, 2051918), (22, 1305766), (28, 1025959), (44, 652883), (61, 470932), (77, 373076), (121, 237412), (122, 235466), (139, 206668), (154, 186538), (242, 118706), (244, 117733), (278, 103334), (308, 93269), (427, 67276), (484, 59353), (556, 51667), (671, 42812), (847, 33916), (854, 33638), (973, 29524), (1342, 21406), (1529, 18788), (1694, 16958), (1708, 16819), (1946, 14762), (2684, 10703), (3058, 9394), (3388, 8479), (3892, 7381), (4697, 6116)]