155555280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 560589120

約数和(自身を除く): 405033840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 83, 90, 95, 114, 120, 137, 144, 152, 166, 171, 180, 190, 228, 240, 249, 274, 285, 304, 332, 342, 360, 380, 411, 415, 456, 498, 548, 570, 664, 684, 685, 720, 747, 760, 822, 830, 855, 912, 996, 1096, 1140, 1233, 1245, 1328, 1368, 1370, 1494, 1520, 1577, 1644, 1660, 1710, 1992, 2055, 2192, 2280, 2466, 2490, 2603, 2736, 2740, 2988, 3154, 3288, 3320, 3420, 3735, 3984, 4110, 4560, 4731, 4932, 4980, 5206, 5480, 5976, 6165, 6308, 6576, 6640, 6840, 7470, 7809, 7885, 8220, 9462, 9864, 9960, 10412, 10960, 11371, 11952, 12330, 12616, 13015, 13680, 14193, 14940, 15618, 15770, 16440, 18924, 19728, 19920, 20824, 22742, 23427, 23655, 24660, 25232, 26030, 28386, 29880, 31236, 31540, 32880, 34113, 37848, 39045, 41648, 45484, 46854, 47310, 49320, 52060, 56772, 56855, 59760, 62472, 63080, 68226, 70965, 75696, 78090, 90968, 93708, 94620, 98640, 102339, 104120, 113544, 113710, 117135, 124944, 126160, 136452, 141930, 156180, 170565, 181936, 187416, 189240, 204678, 208240, 216049, 227088, 227420, 234270, 272904, 283860, 312360, 341130, 374832, 378480, 409356, 432098, 454840, 468540, 511695, 545808, 567720, 624720, 648147, 682260, 818712, 864196, 909680, 937080, 1023390, 1080245, 1135440, 1296294, 1364520, 1637424, 1728392, 1874160, 1944441, 2046780, 2160490, 2592588, 2729040, 3240735, 3456784, 3888882, 4093560, 4320980, 5185176, 6481470, 7777764, 8187120, 8641960, 9722205, 10370352, 12962940, 15555528, 17283920, 19444410, 25925880, 31111056, 38888820, 51851760, 77777640, 155555280]

約数ペア:

[(1, 155555280), (2, 77777640), (3, 51851760), (4, 38888820), (5, 31111056), (6, 25925880), (8, 19444410), (9, 17283920), (10, 15555528), (12, 12962940), (15, 10370352), (16, 9722205), (18, 8641960), (19, 8187120), (20, 7777764), (24, 6481470), (30, 5185176), (36, 4320980), (38, 4093560), (40, 3888882), (45, 3456784), (48, 3240735), (57, 2729040), (60, 2592588), (72, 2160490), (76, 2046780), (80, 1944441), (83, 1874160), (90, 1728392), (95, 1637424), (114, 1364520), (120, 1296294), (137, 1135440), (144, 1080245), (152, 1023390), (166, 937080), (171, 909680), (180, 864196), (190, 818712), (228, 682260), (240, 648147), (249, 624720), (274, 567720), (285, 545808), (304, 511695), (332, 468540), (342, 454840), (360, 432098), (380, 409356), (411, 378480), (415, 374832), (456, 341130), (498, 312360), (548, 283860), (570, 272904), (664, 234270), (684, 227420), (685, 227088), (720, 216049), (747, 208240), (760, 204678), (822, 189240), (830, 187416), (855, 181936), (912, 170565), (996, 156180), (1096, 141930), (1140, 136452), (1233, 126160), (1245, 124944), (1328, 117135), (1368, 113710), (1370, 113544), (1494, 104120), (1520, 102339), (1577, 98640), (1644, 94620), (1660, 93708), (1710, 90968), (1992, 78090), (2055, 75696), (2192, 70965), (2280, 68226), (2466, 63080), (2490, 62472), (2603, 59760), (2736, 56855), (2740, 56772), (2988, 52060), (3154, 49320), (3288, 47310), (3320, 46854), (3420, 45484), (3735, 41648), (3984, 39045), (4110, 37848), (4560, 34113), (4731, 32880), (4932, 31540), (4980, 31236), (5206, 29880), (5480, 28386), (5976, 26030), (6165, 25232), (6308, 24660), (6576, 23655), (6640, 23427), (6840, 22742), (7470, 20824), (7809, 19920), (7885, 19728), (8220, 18924), (9462, 16440), (9864, 15770), (9960, 15618), (10412, 14940), (10960, 14193), (11371, 13680), (11952, 13015), (12330, 12616)]