18919800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:502

約数の個数: 144

約数和(自身を含む): 66446640

約数和(自身を除く): 47526840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 25, 30, 36, 40, 45, 46, 50, 60, 69, 72, 75, 90, 92, 100, 115, 120, 138, 150, 180, 184, 200, 207, 225, 230, 276, 300, 345, 360, 414, 450, 457, 460, 552, 575, 600, 690, 828, 900, 914, 920, 1035, 1150, 1371, 1380, 1656, 1725, 1800, 1828, 2070, 2285, 2300, 2742, 2760, 3450, 3656, 4113, 4140, 4570, 4600, 5175, 5484, 6855, 6900, 8226, 8280, 9140, 10350, 10511, 10968, 11425, 13710, 13800, 16452, 18280, 20565, 20700, 21022, 22850, 27420, 31533, 32904, 34275, 41130, 41400, 42044, 45700, 52555, 54840, 63066, 68550, 82260, 84088, 91400, 94599, 102825, 105110, 126132, 137100, 157665, 164520, 189198, 205650, 210220, 252264, 262775, 274200, 315330, 378396, 411300, 420440, 472995, 525550, 630660, 756792, 788325, 822600, 945990, 1051100, 1261320, 1576650, 1891980, 2102200, 2364975, 3153300, 3783960, 4729950, 6306600, 9459900, 18919800]

約数ペア:

[(1, 18919800), (2, 9459900), (3, 6306600), (4, 4729950), (5, 3783960), (6, 3153300), (8, 2364975), (9, 2102200), (10, 1891980), (12, 1576650), (15, 1261320), (18, 1051100), (20, 945990), (23, 822600), (24, 788325), (25, 756792), (30, 630660), (36, 525550), (40, 472995), (45, 420440), (46, 411300), (50, 378396), (60, 315330), (69, 274200), (72, 262775), (75, 252264), (90, 210220), (92, 205650), (100, 189198), (115, 164520), (120, 157665), (138, 137100), (150, 126132), (180, 105110), (184, 102825), (200, 94599), (207, 91400), (225, 84088), (230, 82260), (276, 68550), (300, 63066), (345, 54840), (360, 52555), (414, 45700), (450, 42044), (457, 41400), (460, 41130), (552, 34275), (575, 32904), (600, 31533), (690, 27420), (828, 22850), (900, 21022), (914, 20700), (920, 20565), (1035, 18280), (1150, 16452), (1371, 13800), (1380, 13710), (1656, 11425), (1725, 10968), (1800, 10511), (1828, 10350), (2070, 9140), (2285, 8280), (2300, 8226), (2742, 6900), (2760, 6855), (3450, 5484), (3656, 5175), (4113, 4600), (4140, 4570)]