28255128

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 83635200

約数和(自身を除く): 55380072

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 19, 22, 24, 33, 38, 43, 44, 57, 66, 76, 86, 88, 114, 129, 131, 132, 152, 172, 209, 228, 258, 262, 264, 344, 393, 418, 456, 473, 516, 524, 627, 786, 817, 836, 946, 1032, 1048, 1254, 1419, 1441, 1572, 1634, 1672, 1892, 2451, 2489, 2508, 2838, 2882, 3144, 3268, 3784, 4323, 4902, 4978, 5016, 5633, 5676, 5764, 6536, 7467, 8646, 8987, 9804, 9956, 11266, 11352, 11528, 14934, 16899, 17292, 17974, 19608, 19912, 22532, 26961, 27379, 29868, 33798, 34584, 35948, 45064, 53922, 54758, 59736, 61963, 67596, 71896, 82137, 107027, 107844, 109516, 123926, 135192, 164274, 185889, 214054, 215688, 219032, 247852, 321081, 328548, 371778, 428108, 495704, 642162, 657096, 743556, 856216, 1177297, 1284324, 1487112, 2354594, 2568648, 3531891, 4709188, 7063782, 9418376, 14127564, 28255128]

約数ペア:

[(1, 28255128), (2, 14127564), (3, 9418376), (4, 7063782), (6, 4709188), (8, 3531891), (11, 2568648), (12, 2354594), (19, 1487112), (22, 1284324), (24, 1177297), (33, 856216), (38, 743556), (43, 657096), (44, 642162), (57, 495704), (66, 428108), (76, 371778), (86, 328548), (88, 321081), (114, 247852), (129, 219032), (131, 215688), (132, 214054), (152, 185889), (172, 164274), (209, 135192), (228, 123926), (258, 109516), (262, 107844), (264, 107027), (344, 82137), (393, 71896), (418, 67596), (456, 61963), (473, 59736), (516, 54758), (524, 53922), (627, 45064), (786, 35948), (817, 34584), (836, 33798), (946, 29868), (1032, 27379), (1048, 26961), (1254, 22532), (1419, 19912), (1441, 19608), (1572, 17974), (1634, 17292), (1672, 16899), (1892, 14934), (2451, 11528), (2489, 11352), (2508, 11266), (2838, 9956), (2882, 9804), (3144, 8987), (3268, 8646), (3784, 7467), (4323, 6536), (4902, 5764), (4978, 5676), (5016, 5633)]