28641816

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1038

約数の個数: 128

約数和(自身を含む): 95808000

約数和(自身を除く): 67166184

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 27, 28, 36, 38, 42, 54, 56, 57, 63, 72, 76, 84, 108, 114, 126, 133, 152, 168, 171, 189, 216, 228, 252, 266, 342, 378, 399, 456, 504, 513, 532, 684, 756, 798, 997, 1026, 1064, 1197, 1368, 1512, 1596, 1994, 2052, 2394, 2991, 3192, 3591, 3988, 4104, 4788, 5982, 6979, 7182, 7976, 8973, 9576, 11964, 13958, 14364, 17946, 18943, 20937, 23928, 26919, 27916, 28728, 35892, 37886, 41874, 53838, 55832, 56829, 62811, 71784, 75772, 83748, 107676, 113658, 125622, 132601, 151544, 167496, 170487, 188433, 215352, 227316, 251244, 265202, 340974, 376866, 397803, 454632, 502488, 511461, 530404, 681948, 753732, 795606, 1022922, 1060808, 1193409, 1363896, 1507464, 1591212, 2045844, 2386818, 3182424, 3580227, 4091688, 4773636, 7160454, 9547272, 14320908, 28641816]

約数ペア:

[(1, 28641816), (2, 14320908), (3, 9547272), (4, 7160454), (6, 4773636), (7, 4091688), (8, 3580227), (9, 3182424), (12, 2386818), (14, 2045844), (18, 1591212), (19, 1507464), (21, 1363896), (24, 1193409), (27, 1060808), (28, 1022922), (36, 795606), (38, 753732), (42, 681948), (54, 530404), (56, 511461), (57, 502488), (63, 454632), (72, 397803), (76, 376866), (84, 340974), (108, 265202), (114, 251244), (126, 227316), (133, 215352), (152, 188433), (168, 170487), (171, 167496), (189, 151544), (216, 132601), (228, 125622), (252, 113658), (266, 107676), (342, 83748), (378, 75772), (399, 71784), (456, 62811), (504, 56829), (513, 55832), (532, 53838), (684, 41874), (756, 37886), (798, 35892), (997, 28728), (1026, 27916), (1064, 26919), (1197, 23928), (1368, 20937), (1512, 18943), (1596, 17946), (1994, 14364), (2052, 13958), (2394, 11964), (2991, 9576), (3192, 8973), (3591, 7976), (3988, 7182), (4104, 6979), (4788, 5982)]