28940184

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:670

約数の個数: 144

約数和(自身を含む): 98345520

約数和(自身を除く): 69405336

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 49, 52, 56, 63, 72, 78, 84, 91, 98, 104, 117, 126, 147, 156, 168, 182, 196, 234, 252, 273, 294, 312, 364, 392, 441, 468, 504, 546, 588, 631, 637, 728, 819, 882, 936, 1092, 1176, 1262, 1274, 1638, 1764, 1893, 1911, 2184, 2524, 2548, 3276, 3528, 3786, 3822, 4417, 5048, 5096, 5679, 5733, 6552, 7572, 7644, 8203, 8834, 11358, 11466, 13251, 15144, 15288, 16406, 17668, 22716, 22932, 24609, 26502, 30919, 32812, 35336, 39753, 45432, 45864, 49218, 53004, 57421, 61838, 65624, 73827, 79506, 92757, 98436, 106008, 114842, 123676, 147654, 159012, 172263, 185514, 196872, 229684, 247352, 278271, 295308, 318024, 344526, 371028, 401947, 459368, 516789, 556542, 590616, 689052, 742056, 803894, 1033578, 1113084, 1205841, 1378104, 1607788, 2067156, 2226168, 2411682, 3215576, 3617523, 4134312, 4823364, 7235046, 9646728, 14470092, 28940184]

約数ペア:

[(1, 28940184), (2, 14470092), (3, 9646728), (4, 7235046), (6, 4823364), (7, 4134312), (8, 3617523), (9, 3215576), (12, 2411682), (13, 2226168), (14, 2067156), (18, 1607788), (21, 1378104), (24, 1205841), (26, 1113084), (28, 1033578), (36, 803894), (39, 742056), (42, 689052), (49, 590616), (52, 556542), (56, 516789), (63, 459368), (72, 401947), (78, 371028), (84, 344526), (91, 318024), (98, 295308), (104, 278271), (117, 247352), (126, 229684), (147, 196872), (156, 185514), (168, 172263), (182, 159012), (196, 147654), (234, 123676), (252, 114842), (273, 106008), (294, 98436), (312, 92757), (364, 79506), (392, 73827), (441, 65624), (468, 61838), (504, 57421), (546, 53004), (588, 49218), (631, 45864), (637, 45432), (728, 39753), (819, 35336), (882, 32812), (936, 30919), (1092, 26502), (1176, 24609), (1262, 22932), (1274, 22716), (1638, 17668), (1764, 16406), (1893, 15288), (1911, 15144), (2184, 13251), (2524, 11466), (2548, 11358), (3276, 8834), (3528, 8203), (3786, 7644), (3822, 7572), (4417, 6552), (5048, 5733), (5096, 5679)]