81250560

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{2351}}^1$

素因数の和:2381

約数の個数: 144

約数和(自身を含む): 288449280

約数和(自身を除く): 207198720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1728, 1920, 2160, 2304, 2351, 2880, 3456, 3840, 4320, 4702, 5760, 6912, 7053, 8640, 9404, 11520, 11755, 14106, 17280, 18808, 21159, 23510, 28212, 34560, 35265, 37616, 42318, 47020, 56424, 63477, 70530, 75232, 84636, 94040, 105795, 112848, 126954, 141060, 150464, 169272, 188080, 211590, 225696, 253908, 282120, 300928, 317385, 338544, 376160, 423180, 451392, 507816, 564240, 601856, 634770, 677088, 752320, 846360, 902784, 1015632, 1128480, 1269540, 1354176, 1504640, 1692720, 1805568, 2031264, 2256960, 2539080, 2708352, 3009280, 3385440, 4062528, 4513920, 5078160, 5416704, 6770880, 8125056, 9027840, 10156320, 13541760, 16250112, 20312640, 27083520, 40625280, 81250560]

約数ペア:

[(1, 81250560), (2, 40625280), (3, 27083520), (4, 20312640), (5, 16250112), (6, 13541760), (8, 10156320), (9, 9027840), (10, 8125056), (12, 6770880), (15, 5416704), (16, 5078160), (18, 4513920), (20, 4062528), (24, 3385440), (27, 3009280), (30, 2708352), (32, 2539080), (36, 2256960), (40, 2031264), (45, 1805568), (48, 1692720), (54, 1504640), (60, 1354176), (64, 1269540), (72, 1128480), (80, 1015632), (90, 902784), (96, 846360), (108, 752320), (120, 677088), (128, 634770), (135, 601856), (144, 564240), (160, 507816), (180, 451392), (192, 423180), (216, 376160), (240, 338544), (256, 317385), (270, 300928), (288, 282120), (320, 253908), (360, 225696), (384, 211590), (432, 188080), (480, 169272), (540, 150464), (576, 141060), (640, 126954), (720, 112848), (768, 105795), (864, 94040), (960, 84636), (1080, 75232), (1152, 70530), (1280, 63477), (1440, 56424), (1728, 47020), (1920, 42318), (2160, 37616), (2304, 35265), (2351, 34560), (2880, 28212), (3456, 23510), (3840, 21159), (4320, 18808), (4702, 17280), (5760, 14106), (6912, 11755), (7053, 11520), (8640, 9404)]