81246720

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 160

約数和(自身を含む): 265161600

約数和(自身を除く): 183914880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 128, 142, 149, 160, 192, 213, 240, 256, 284, 298, 320, 355, 384, 426, 447, 480, 512, 568, 596, 640, 710, 745, 768, 852, 894, 960, 1065, 1136, 1192, 1280, 1420, 1490, 1536, 1704, 1788, 1920, 2130, 2235, 2272, 2384, 2560, 2840, 2980, 3408, 3576, 3840, 4260, 4470, 4544, 4768, 5680, 5960, 6816, 7152, 7680, 8520, 8940, 9088, 9536, 10579, 11360, 11920, 13632, 14304, 17040, 17880, 18176, 19072, 21158, 22720, 23840, 27264, 28608, 31737, 34080, 35760, 36352, 38144, 42316, 45440, 47680, 52895, 54528, 57216, 63474, 68160, 71520, 76288, 84632, 90880, 95360, 105790, 109056, 114432, 126948, 136320, 143040, 158685, 169264, 181760, 190720, 211580, 228864, 253896, 272640, 286080, 317370, 338528, 381440, 423160, 507792, 545280, 572160, 634740, 677056, 846320, 1015584, 1144320, 1269480, 1354112, 1692640, 2031168, 2538960, 2708224, 3385280, 4062336, 5077920, 5416448, 6770560, 8124672, 10155840, 13541120, 16249344, 20311680, 27082240, 40623360, 81246720]

約数ペア:

[(1, 81246720), (2, 40623360), (3, 27082240), (4, 20311680), (5, 16249344), (6, 13541120), (8, 10155840), (10, 8124672), (12, 6770560), (15, 5416448), (16, 5077920), (20, 4062336), (24, 3385280), (30, 2708224), (32, 2538960), (40, 2031168), (48, 1692640), (60, 1354112), (64, 1269480), (71, 1144320), (80, 1015584), (96, 846320), (120, 677056), (128, 634740), (142, 572160), (149, 545280), (160, 507792), (192, 423160), (213, 381440), (240, 338528), (256, 317370), (284, 286080), (298, 272640), (320, 253896), (355, 228864), (384, 211580), (426, 190720), (447, 181760), (480, 169264), (512, 158685), (568, 143040), (596, 136320), (640, 126948), (710, 114432), (745, 109056), (768, 105790), (852, 95360), (894, 90880), (960, 84632), (1065, 76288), (1136, 71520), (1192, 68160), (1280, 63474), (1420, 57216), (1490, 54528), (1536, 52895), (1704, 47680), (1788, 45440), (1920, 42316), (2130, 38144), (2235, 36352), (2272, 35760), (2384, 34080), (2560, 31737), (2840, 28608), (2980, 27264), (3408, 23840), (3576, 22720), (3840, 21158), (4260, 19072), (4470, 18176), (4544, 17880), (4768, 17040), (5680, 14304), (5960, 13632), (6816, 11920), (7152, 11360), (7680, 10579), (8520, 9536), (8940, 9088)]