312879280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:387

約数の個数: 160

約数和(自身を含む): 874229760

約数和(自身を除く): 561350480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 67, 70, 80, 112, 124, 134, 140, 155, 217, 248, 268, 269, 280, 310, 335, 434, 469, 496, 536, 538, 560, 620, 670, 868, 938, 1072, 1076, 1085, 1240, 1340, 1345, 1736, 1876, 1883, 2077, 2152, 2170, 2345, 2480, 2680, 2690, 3472, 3752, 3766, 4154, 4304, 4340, 4690, 5360, 5380, 7504, 7532, 8308, 8339, 8680, 9380, 9415, 10385, 10760, 14539, 15064, 16616, 16678, 17360, 18023, 18760, 18830, 20770, 21520, 29078, 30128, 33232, 33356, 36046, 37520, 37660, 41540, 41695, 58156, 58373, 66712, 72092, 72695, 75320, 83080, 83390, 90115, 116312, 116746, 126161, 133424, 144184, 145390, 150640, 166160, 166780, 180230, 232624, 233492, 252322, 288368, 290780, 291865, 333560, 360460, 466984, 504644, 558713, 581560, 583730, 630805, 667120, 720920, 933968, 1009288, 1117426, 1163120, 1167460, 1261610, 1441840, 2018576, 2234852, 2334920, 2523220, 2793565, 3910991, 4469704, 4669840, 5046440, 5587130, 7821982, 8939408, 10092880, 11174260, 15643964, 19554955, 22348520, 31287928, 39109910, 44697040, 62575856, 78219820, 156439640, 312879280]

約数ペア:

[(1, 312879280), (2, 156439640), (4, 78219820), (5, 62575856), (7, 44697040), (8, 39109910), (10, 31287928), (14, 22348520), (16, 19554955), (20, 15643964), (28, 11174260), (31, 10092880), (35, 8939408), (40, 7821982), (56, 5587130), (62, 5046440), (67, 4669840), (70, 4469704), (80, 3910991), (112, 2793565), (124, 2523220), (134, 2334920), (140, 2234852), (155, 2018576), (217, 1441840), (248, 1261610), (268, 1167460), (269, 1163120), (280, 1117426), (310, 1009288), (335, 933968), (434, 720920), (469, 667120), (496, 630805), (536, 583730), (538, 581560), (560, 558713), (620, 504644), (670, 466984), (868, 360460), (938, 333560), (1072, 291865), (1076, 290780), (1085, 288368), (1240, 252322), (1340, 233492), (1345, 232624), (1736, 180230), (1876, 166780), (1883, 166160), (2077, 150640), (2152, 145390), (2170, 144184), (2345, 133424), (2480, 126161), (2680, 116746), (2690, 116312), (3472, 90115), (3752, 83390), (3766, 83080), (4154, 75320), (4304, 72695), (4340, 72092), (4690, 66712), (5360, 58373), (5380, 58156), (7504, 41695), (7532, 41540), (8308, 37660), (8339, 37520), (8680, 36046), (9380, 33356), (9415, 33232), (10385, 30128), (10760, 29078), (14539, 21520), (15064, 20770), (16616, 18830), (16678, 18760), (17360, 18023)]