28745556

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 85800960

約数和(自身を除く): 57055404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 31, 38, 42, 49, 57, 62, 76, 83, 84, 93, 98, 114, 124, 133, 147, 166, 186, 196, 217, 228, 249, 266, 294, 332, 372, 399, 434, 498, 532, 581, 588, 589, 651, 798, 868, 931, 996, 1162, 1178, 1302, 1519, 1577, 1596, 1743, 1767, 1862, 2324, 2356, 2573, 2604, 2793, 3038, 3154, 3486, 3534, 3724, 4067, 4123, 4557, 4731, 5146, 5586, 6076, 6308, 6972, 7068, 7719, 8134, 8246, 9114, 9462, 10292, 11039, 11172, 12201, 12369, 15438, 16268, 16492, 18011, 18228, 18924, 22078, 24402, 24738, 28861, 30876, 33117, 36022, 44156, 48804, 48887, 49476, 54033, 57722, 66234, 72044, 77273, 86583, 97774, 108066, 115444, 126077, 132468, 146661, 154546, 173166, 195548, 216132, 231819, 252154, 293322, 309092, 342209, 346332, 378231, 463638, 504308, 586644, 684418, 756462, 927276, 1026627, 1368836, 1512924, 2053254, 2395463, 4106508, 4790926, 7186389, 9581852, 14372778, 28745556]

約数ペア:

[(1, 28745556), (2, 14372778), (3, 9581852), (4, 7186389), (6, 4790926), (7, 4106508), (12, 2395463), (14, 2053254), (19, 1512924), (21, 1368836), (28, 1026627), (31, 927276), (38, 756462), (42, 684418), (49, 586644), (57, 504308), (62, 463638), (76, 378231), (83, 346332), (84, 342209), (93, 309092), (98, 293322), (114, 252154), (124, 231819), (133, 216132), (147, 195548), (166, 173166), (186, 154546), (196, 146661), (217, 132468), (228, 126077), (249, 115444), (266, 108066), (294, 97774), (332, 86583), (372, 77273), (399, 72044), (434, 66234), (498, 57722), (532, 54033), (581, 49476), (588, 48887), (589, 48804), (651, 44156), (798, 36022), (868, 33117), (931, 30876), (996, 28861), (1162, 24738), (1178, 24402), (1302, 22078), (1519, 18924), (1577, 18228), (1596, 18011), (1743, 16492), (1767, 16268), (1862, 15438), (2324, 12369), (2356, 12201), (2573, 11172), (2604, 11039), (2793, 10292), (3038, 9462), (3154, 9114), (3486, 8246), (3534, 8134), (3724, 7719), (4067, 7068), (4123, 6972), (4557, 6308), (4731, 6076), (5146, 5586)]