311081680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 240

約数和(自身を含む): 947617920

約数和(自身を除く): 636536240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 152, 169, 173, 182, 190, 208, 247, 260, 266, 280, 304, 338, 346, 364, 380, 455, 494, 520, 532, 560, 665, 676, 692, 728, 760, 845, 865, 910, 988, 1040, 1064, 1183, 1211, 1235, 1330, 1352, 1384, 1456, 1520, 1690, 1729, 1730, 1820, 1976, 2128, 2249, 2366, 2422, 2470, 2660, 2704, 2768, 3211, 3287, 3380, 3458, 3460, 3640, 3952, 4498, 4732, 4844, 4940, 5320, 5915, 6055, 6422, 6574, 6760, 6916, 6920, 7280, 8645, 8996, 9464, 9688, 9880, 10640, 11245, 11830, 12110, 12844, 13148, 13520, 13832, 13840, 15743, 16055, 16435, 17290, 17992, 18928, 19376, 19760, 22477, 22490, 23009, 23660, 24220, 25688, 26296, 27664, 29237, 31486, 32110, 32870, 34580, 35984, 42731, 44954, 44980, 46018, 47320, 48440, 51376, 52592, 58474, 62972, 64220, 65740, 69160, 78715, 85462, 89908, 89960, 92036, 94640, 96880, 112385, 115045, 116948, 125944, 128440, 131480, 138320, 146185, 157430, 170924, 179816, 179920, 184072, 204659, 213655, 224770, 230090, 233896, 251888, 256880, 262960, 292370, 299117, 314860, 341848, 359632, 368144, 409318, 427310, 449540, 460180, 467792, 555503, 584740, 598234, 629720, 683696, 818636, 854620, 899080, 920360, 1023295, 1111006, 1169480, 1196468, 1259440, 1495585, 1637272, 1709240, 1798160, 1840720, 2046590, 2222012, 2338960, 2392936, 2777515, 2991170, 3274544, 3418480, 3888521, 4093180, 4444024, 4785872, 5555030, 5982340, 7777042, 8186360, 8888048, 11110060, 11964680, 15554084, 16372720, 19442605, 22220120, 23929360, 31108168, 38885210, 44440240, 62216336, 77770420, 155540840, 311081680]

約数ペア:

[(1, 311081680), (2, 155540840), (4, 77770420), (5, 62216336), (7, 44440240), (8, 38885210), (10, 31108168), (13, 23929360), (14, 22220120), (16, 19442605), (19, 16372720), (20, 15554084), (26, 11964680), (28, 11110060), (35, 8888048), (38, 8186360), (40, 7777042), (52, 5982340), (56, 5555030), (65, 4785872), (70, 4444024), (76, 4093180), (80, 3888521), (91, 3418480), (95, 3274544), (104, 2991170), (112, 2777515), (130, 2392936), (133, 2338960), (140, 2222012), (152, 2046590), (169, 1840720), (173, 1798160), (182, 1709240), (190, 1637272), (208, 1495585), (247, 1259440), (260, 1196468), (266, 1169480), (280, 1111006), (304, 1023295), (338, 920360), (346, 899080), (364, 854620), (380, 818636), (455, 683696), (494, 629720), (520, 598234), (532, 584740), (560, 555503), (665, 467792), (676, 460180), (692, 449540), (728, 427310), (760, 409318), (845, 368144), (865, 359632), (910, 341848), (988, 314860), (1040, 299117), (1064, 292370), (1183, 262960), (1211, 256880), (1235, 251888), (1330, 233896), (1352, 230090), (1384, 224770), (1456, 213655), (1520, 204659), (1690, 184072), (1729, 179920), (1730, 179816), (1820, 170924), (1976, 157430), (2128, 146185), (2249, 138320), (2366, 131480), (2422, 128440), (2470, 125944), (2660, 116948), (2704, 115045), (2768, 112385), (3211, 96880), (3287, 94640), (3380, 92036), (3458, 89960), (3460, 89908), (3640, 85462), (3952, 78715), (4498, 69160), (4732, 65740), (4844, 64220), (4940, 62972), (5320, 58474), (5915, 52592), (6055, 51376), (6422, 48440), (6574, 47320), (6760, 46018), (6916, 44980), (6920, 44954), (7280, 42731), (8645, 35984), (8996, 34580), (9464, 32870), (9688, 32110), (9880, 31486), (10640, 29237), (11245, 27664), (11830, 26296), (12110, 25688), (12844, 24220), (13148, 23660), (13520, 23009), (13832, 22490), (13840, 22477), (15743, 19760), (16055, 19376), (16435, 18928), (17290, 17992)]