161815800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{37}}^2\times {\mathrm{197}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 518169960

約数和(自身を除く): 356354160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 37, 40, 50, 60, 74, 75, 100, 111, 120, 148, 150, 185, 197, 200, 222, 296, 300, 370, 394, 444, 555, 591, 600, 740, 788, 888, 925, 985, 1110, 1182, 1369, 1480, 1576, 1850, 1970, 2220, 2364, 2738, 2775, 2955, 3700, 3940, 4107, 4440, 4728, 4925, 5476, 5550, 5910, 6845, 7289, 7400, 7880, 8214, 9850, 10952, 11100, 11820, 13690, 14578, 14775, 16428, 19700, 20535, 21867, 22200, 23640, 27380, 29156, 29550, 32856, 34225, 36445, 39400, 41070, 43734, 54760, 58312, 59100, 68450, 72890, 82140, 87468, 102675, 109335, 118200, 136900, 145780, 164280, 174936, 182225, 205350, 218670, 269693, 273800, 291560, 364450, 410700, 437340, 539386, 546675, 728900, 809079, 821400, 874680, 1078772, 1093350, 1348465, 1457800, 1618158, 2157544, 2186700, 2696930, 3236316, 4045395, 4373400, 5393860, 6472632, 6742325, 8090790, 10787720, 13484650, 16181580, 20226975, 26969300, 32363160, 40453950, 53938600, 80907900, 161815800]

約数ペア:

[(1, 161815800), (2, 80907900), (3, 53938600), (4, 40453950), (5, 32363160), (6, 26969300), (8, 20226975), (10, 16181580), (12, 13484650), (15, 10787720), (20, 8090790), (24, 6742325), (25, 6472632), (30, 5393860), (37, 4373400), (40, 4045395), (50, 3236316), (60, 2696930), (74, 2186700), (75, 2157544), (100, 1618158), (111, 1457800), (120, 1348465), (148, 1093350), (150, 1078772), (185, 874680), (197, 821400), (200, 809079), (222, 728900), (296, 546675), (300, 539386), (370, 437340), (394, 410700), (444, 364450), (555, 291560), (591, 273800), (600, 269693), (740, 218670), (788, 205350), (888, 182225), (925, 174936), (985, 164280), (1110, 145780), (1182, 136900), (1369, 118200), (1480, 109335), (1576, 102675), (1850, 87468), (1970, 82140), (2220, 72890), (2364, 68450), (2738, 59100), (2775, 58312), (2955, 54760), (3700, 43734), (3940, 41070), (4107, 39400), (4440, 36445), (4728, 34225), (4925, 32856), (5476, 29550), (5550, 29156), (5910, 27380), (6845, 23640), (7289, 22200), (7400, 21867), (7880, 20535), (8214, 19700), (9850, 16428), (10952, 14775), (11100, 14578), (11820, 13690)]