278402320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 240

約数和(自身を含む): 814233600

約数和(自身を除く): 535831280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 35, 40, 49, 56, 58, 62, 70, 79, 80, 98, 112, 116, 124, 140, 145, 155, 158, 196, 203, 217, 232, 245, 248, 280, 290, 310, 316, 392, 395, 406, 434, 464, 490, 496, 553, 560, 580, 620, 632, 784, 790, 812, 868, 899, 980, 1015, 1085, 1106, 1160, 1240, 1264, 1421, 1519, 1580, 1624, 1736, 1798, 1960, 2030, 2170, 2212, 2291, 2320, 2449, 2480, 2765, 2842, 3038, 3160, 3248, 3472, 3596, 3871, 3920, 4060, 4340, 4424, 4495, 4582, 4898, 5530, 5684, 6076, 6293, 6320, 7105, 7192, 7595, 7742, 8120, 8680, 8848, 8990, 9164, 9796, 11060, 11368, 11455, 12152, 12245, 12586, 14210, 14384, 15190, 15484, 16037, 16240, 17143, 17360, 17980, 18328, 19355, 19592, 22120, 22736, 22910, 24304, 24490, 25172, 28420, 30380, 30968, 31465, 32074, 34286, 35960, 36656, 38710, 39184, 44051, 44240, 45820, 48980, 50344, 56840, 60760, 61936, 62930, 64148, 68572, 71021, 71920, 77420, 80185, 85715, 88102, 91640, 97960, 100688, 112259, 113680, 120001, 121520, 125860, 128296, 137144, 142042, 154840, 160370, 171430, 176204, 183280, 195920, 220255, 224518, 240002, 251720, 256592, 274288, 284084, 309680, 320740, 342860, 352408, 355105, 440510, 449036, 480004, 497147, 503440, 561295, 568168, 600005, 641480, 685720, 704816, 710210, 881020, 898072, 960008, 994294, 1122590, 1136336, 1200010, 1282960, 1371440, 1420420, 1762040, 1796144, 1920016, 1988588, 2245180, 2400020, 2485735, 2840840, 3480029, 3524080, 3977176, 4490360, 4800040, 4971470, 5681680, 6960058, 7954352, 8980720, 9600080, 9942940, 13920116, 17400145, 19885880, 27840232, 34800290, 39771760, 55680464, 69600580, 139201160, 278402320]

約数ペア:

[(1, 278402320), (2, 139201160), (4, 69600580), (5, 55680464), (7, 39771760), (8, 34800290), (10, 27840232), (14, 19885880), (16, 17400145), (20, 13920116), (28, 9942940), (29, 9600080), (31, 8980720), (35, 7954352), (40, 6960058), (49, 5681680), (56, 4971470), (58, 4800040), (62, 4490360), (70, 3977176), (79, 3524080), (80, 3480029), (98, 2840840), (112, 2485735), (116, 2400020), (124, 2245180), (140, 1988588), (145, 1920016), (155, 1796144), (158, 1762040), (196, 1420420), (203, 1371440), (217, 1282960), (232, 1200010), (245, 1136336), (248, 1122590), (280, 994294), (290, 960008), (310, 898072), (316, 881020), (392, 710210), (395, 704816), (406, 685720), (434, 641480), (464, 600005), (490, 568168), (496, 561295), (553, 503440), (560, 497147), (580, 480004), (620, 449036), (632, 440510), (784, 355105), (790, 352408), (812, 342860), (868, 320740), (899, 309680), (980, 284084), (1015, 274288), (1085, 256592), (1106, 251720), (1160, 240002), (1240, 224518), (1264, 220255), (1421, 195920), (1519, 183280), (1580, 176204), (1624, 171430), (1736, 160370), (1798, 154840), (1960, 142042), (2030, 137144), (2170, 128296), (2212, 125860), (2291, 121520), (2320, 120001), (2449, 113680), (2480, 112259), (2765, 100688), (2842, 97960), (3038, 91640), (3160, 88102), (3248, 85715), (3472, 80185), (3596, 77420), (3871, 71920), (3920, 71021), (4060, 68572), (4340, 64148), (4424, 62930), (4495, 61936), (4582, 60760), (4898, 56840), (5530, 50344), (5684, 48980), (6076, 45820), (6293, 44240), (6320, 44051), (7105, 39184), (7192, 38710), (7595, 36656), (7742, 35960), (8120, 34286), (8680, 32074), (8848, 31465), (8990, 30968), (9164, 30380), (9796, 28420), (11060, 25172), (11368, 24490), (11455, 24304), (12152, 22910), (12245, 22736), (12586, 22120), (14210, 19592), (14384, 19355), (15190, 18328), (15484, 17980), (16037, 17360), (16240, 17143)]