128431884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 371906304

約数和(自身を除く): 243474420

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 37, 42, 43, 62, 74, 84, 86, 93, 111, 124, 129, 148, 172, 186, 217, 222, 258, 259, 301, 372, 434, 444, 516, 518, 602, 651, 777, 868, 903, 961, 1036, 1147, 1204, 1302, 1333, 1554, 1591, 1806, 1922, 2294, 2604, 2666, 2883, 3108, 3182, 3441, 3612, 3844, 3999, 4588, 4773, 5332, 5766, 6364, 6727, 6882, 7998, 8029, 9331, 9546, 11137, 11532, 13454, 13764, 15996, 16058, 18662, 19092, 20181, 22274, 24087, 26908, 27993, 32116, 33411, 35557, 37324, 40362, 41323, 44548, 48174, 49321, 55986, 66822, 71114, 80724, 82646, 96348, 98642, 106671, 111972, 123969, 133644, 142228, 147963, 165292, 197284, 213342, 247938, 248899, 289261, 295926, 345247, 426684, 495876, 497798, 578522, 591852, 690494, 746697, 867783, 995596, 1035741, 1157044, 1380988, 1493394, 1528951, 1735566, 2071482, 2986788, 3057902, 3471132, 4142964, 4586853, 6115804, 9173706, 10702657, 18347412, 21405314, 32107971, 42810628, 64215942, 128431884]

約数ペア:

[(1, 128431884), (2, 64215942), (3, 42810628), (4, 32107971), (6, 21405314), (7, 18347412), (12, 10702657), (14, 9173706), (21, 6115804), (28, 4586853), (31, 4142964), (37, 3471132), (42, 3057902), (43, 2986788), (62, 2071482), (74, 1735566), (84, 1528951), (86, 1493394), (93, 1380988), (111, 1157044), (124, 1035741), (129, 995596), (148, 867783), (172, 746697), (186, 690494), (217, 591852), (222, 578522), (258, 497798), (259, 495876), (301, 426684), (372, 345247), (434, 295926), (444, 289261), (516, 248899), (518, 247938), (602, 213342), (651, 197284), (777, 165292), (868, 147963), (903, 142228), (961, 133644), (1036, 123969), (1147, 111972), (1204, 106671), (1302, 98642), (1333, 96348), (1554, 82646), (1591, 80724), (1806, 71114), (1922, 66822), (2294, 55986), (2604, 49321), (2666, 48174), (2883, 44548), (3108, 41323), (3182, 40362), (3441, 37324), (3612, 35557), (3844, 33411), (3999, 32116), (4588, 27993), (4773, 26908), (5332, 24087), (5766, 22274), (6364, 20181), (6727, 19092), (6882, 18662), (7998, 16058), (8029, 15996), (9331, 13764), (9546, 13454), (11137, 11532)]