128655828

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:474

約数の個数: 144

約数和(自身を含む): 393609216

約数和(自身を除く): 264953388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 43, 62, 63, 84, 86, 93, 124, 126, 129, 172, 186, 217, 252, 258, 279, 301, 372, 383, 387, 434, 516, 558, 602, 651, 766, 774, 868, 903, 1116, 1149, 1204, 1302, 1333, 1532, 1548, 1806, 1953, 2298, 2604, 2666, 2681, 2709, 3447, 3612, 3906, 3999, 4596, 5332, 5362, 5418, 6894, 7812, 7998, 8043, 9331, 10724, 10836, 11873, 11997, 13788, 15996, 16086, 16469, 18662, 23746, 23994, 24129, 27993, 32172, 32938, 35619, 37324, 47492, 47988, 48258, 49407, 55986, 65876, 71238, 83111, 83979, 96516, 98814, 106857, 111972, 115283, 142476, 148221, 166222, 167958, 197628, 213714, 230566, 249333, 296442, 332444, 335916, 345849, 427428, 461132, 498666, 510539, 592884, 691698, 747999, 997332, 1021078, 1037547, 1383396, 1495998, 1531617, 2042156, 2075094, 2991996, 3063234, 3573773, 4150188, 4594851, 6126468, 7147546, 9189702, 10721319, 14295092, 18379404, 21442638, 32163957, 42885276, 64327914, 128655828]

約数ペア:

[(1, 128655828), (2, 64327914), (3, 42885276), (4, 32163957), (6, 21442638), (7, 18379404), (9, 14295092), (12, 10721319), (14, 9189702), (18, 7147546), (21, 6126468), (28, 4594851), (31, 4150188), (36, 3573773), (42, 3063234), (43, 2991996), (62, 2075094), (63, 2042156), (84, 1531617), (86, 1495998), (93, 1383396), (124, 1037547), (126, 1021078), (129, 997332), (172, 747999), (186, 691698), (217, 592884), (252, 510539), (258, 498666), (279, 461132), (301, 427428), (372, 345849), (383, 335916), (387, 332444), (434, 296442), (516, 249333), (558, 230566), (602, 213714), (651, 197628), (766, 167958), (774, 166222), (868, 148221), (903, 142476), (1116, 115283), (1149, 111972), (1204, 106857), (1302, 98814), (1333, 96516), (1532, 83979), (1548, 83111), (1806, 71238), (1953, 65876), (2298, 55986), (2604, 49407), (2666, 48258), (2681, 47988), (2709, 47492), (3447, 37324), (3612, 35619), (3906, 32938), (3999, 32172), (4596, 27993), (5332, 24129), (5362, 23994), (5418, 23746), (6894, 18662), (7812, 16469), (7998, 16086), (8043, 15996), (9331, 13788), (10724, 11997), (10836, 11873)]