391780480

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:108

約数の個数: 288

約数和(自身を含む): 1212393420

約数和(自身を除く): 820612940

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 49, 52, 56, 62, 64, 65, 70, 80, 91, 98, 104, 112, 124, 128, 130, 140, 155, 160, 182, 196, 208, 217, 224, 245, 248, 260, 280, 310, 320, 364, 392, 403, 416, 434, 448, 455, 490, 496, 520, 560, 620, 637, 640, 728, 784, 806, 832, 868, 896, 910, 961, 980, 992, 1040, 1085, 1120, 1240, 1274, 1456, 1519, 1568, 1612, 1664, 1736, 1820, 1922, 1960, 1984, 2015, 2080, 2170, 2240, 2480, 2548, 2821, 2912, 3038, 3136, 3185, 3224, 3472, 3640, 3844, 3920, 3968, 4030, 4160, 4340, 4480, 4805, 4960, 5096, 5642, 5824, 6076, 6272, 6370, 6448, 6727, 6944, 7280, 7595, 7688, 7840, 8060, 8320, 8680, 9610, 9920, 10192, 11284, 11648, 12152, 12493, 12740, 12896, 13454, 13888, 14105, 14560, 15190, 15376, 15680, 16120, 17360, 19220, 19747, 19840, 20384, 22568, 24304, 24986, 25480, 25792, 26908, 27776, 28210, 29120, 30380, 30752, 31360, 32240, 33635, 34720, 38440, 39494, 40768, 45136, 47089, 48608, 49972, 50960, 51584, 53816, 56420, 58240, 60760, 61504, 62465, 64480, 67270, 69440, 76880, 78988, 81536, 87451, 90272, 94178, 97216, 98735, 99944, 101920, 107632, 112840, 121520, 123008, 124930, 128960, 134540, 138880, 153760, 157976, 174902, 180544, 188356, 194432, 197470, 199888, 203840, 215264, 225680, 235445, 243040, 249860, 257920, 269080, 307520, 315952, 349804, 361088, 376712, 394940, 399776, 407680, 430528, 437255, 451360, 470890, 486080, 499720, 538160, 612157, 615040, 631904, 699608, 753424, 789880, 799552, 861056, 874510, 902720, 941780, 972160, 999440, 1076320, 1224314, 1263808, 1399216, 1506848, 1579760, 1599104, 1749020, 1805440, 1883560, 1998880, 2152640, 2448628, 2527616, 2798432, 3013696, 3060785, 3159520, 3498040, 3767120, 3997760, 4305280, 4897256, 5596864, 6027392, 6121570, 6319040, 6996080, 7534240, 7995520, 9794512, 11193728, 12243140, 12638080, 13992160, 15068480, 19589024, 24486280, 27984320, 30136960, 39178048, 48972560, 55968640, 78356096, 97945120, 195890240, 391780480]

約数ペア:

[(1, 391780480), (2, 195890240), (4, 97945120), (5, 78356096), (7, 55968640), (8, 48972560), (10, 39178048), (13, 30136960), (14, 27984320), (16, 24486280), (20, 19589024), (26, 15068480), (28, 13992160), (31, 12638080), (32, 12243140), (35, 11193728), (40, 9794512), (49, 7995520), (52, 7534240), (56, 6996080), (62, 6319040), (64, 6121570), (65, 6027392), (70, 5596864), (80, 4897256), (91, 4305280), (98, 3997760), (104, 3767120), (112, 3498040), (124, 3159520), (128, 3060785), (130, 3013696), (140, 2798432), (155, 2527616), (160, 2448628), (182, 2152640), (196, 1998880), (208, 1883560), (217, 1805440), (224, 1749020), (245, 1599104), (248, 1579760), (260, 1506848), (280, 1399216), (310, 1263808), (320, 1224314), (364, 1076320), (392, 999440), (403, 972160), (416, 941780), (434, 902720), (448, 874510), (455, 861056), (490, 799552), (496, 789880), (520, 753424), (560, 699608), (620, 631904), (637, 615040), (640, 612157), (728, 538160), (784, 499720), (806, 486080), (832, 470890), (868, 451360), (896, 437255), (910, 430528), (961, 407680), (980, 399776), (992, 394940), (1040, 376712), (1085, 361088), (1120, 349804), (1240, 315952), (1274, 307520), (1456, 269080), (1519, 257920), (1568, 249860), (1612, 243040), (1664, 235445), (1736, 225680), (1820, 215264), (1922, 203840), (1960, 199888), (1984, 197470), (2015, 194432), (2080, 188356), (2170, 180544), (2240, 174902), (2480, 157976), (2548, 153760), (2821, 138880), (2912, 134540), (3038, 128960), (3136, 124930), (3185, 123008), (3224, 121520), (3472, 112840), (3640, 107632), (3844, 101920), (3920, 99944), (3968, 98735), (4030, 97216), (4160, 94178), (4340, 90272), (4480, 87451), (4805, 81536), (4960, 78988), (5096, 76880), (5642, 69440), (5824, 67270), (6076, 64480), (6272, 62465), (6370, 61504), (6448, 60760), (6727, 58240), (6944, 56420), (7280, 53816), (7595, 51584), (7688, 50960), (7840, 49972), (8060, 48608), (8320, 47089), (8680, 45136), (9610, 40768), (9920, 39494), (10192, 38440), (11284, 34720), (11648, 33635), (12152, 32240), (12493, 31360), (12740, 30752), (12896, 30380), (13454, 29120), (13888, 28210), (14105, 27776), (14560, 26908), (15190, 25792), (15376, 25480), (15680, 24986), (16120, 24304), (17360, 22568), (19220, 20384), (19747, 19840)]