318898240

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 168

約数和(自身を含む): 844439256

約数和(自身を除く): 525541016

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 61, 62, 64, 68, 80, 85, 122, 124, 136, 155, 160, 170, 244, 248, 272, 305, 310, 320, 340, 488, 496, 527, 544, 610, 620, 680, 961, 976, 992, 1037, 1054, 1088, 1220, 1240, 1360, 1891, 1922, 1952, 1984, 2074, 2108, 2440, 2480, 2635, 2720, 3782, 3844, 3904, 4148, 4216, 4805, 4880, 4960, 5185, 5270, 5440, 7564, 7688, 8296, 8432, 9455, 9610, 9760, 9920, 10370, 10540, 15128, 15376, 16337, 16592, 16864, 18910, 19220, 19520, 20740, 21080, 30256, 30752, 32147, 32674, 33184, 33728, 37820, 38440, 41480, 42160, 58621, 60512, 61504, 64294, 65348, 66368, 75640, 76880, 81685, 82960, 84320, 117242, 121024, 128588, 130696, 151280, 153760, 160735, 163370, 165920, 168640, 234484, 257176, 261392, 293105, 302560, 307520, 321470, 326740, 331840, 468968, 514352, 522784, 586210, 605120, 642940, 653480, 937936, 996557, 1028704, 1045568, 1172420, 1285880, 1306960, 1875872, 1993114, 2057408, 2344840, 2571760, 2613920, 3751744, 3986228, 4689680, 4982785, 5143520, 5227840, 7972456, 9379360, 9965570, 10287040, 15944912, 18758720, 19931140, 31889824, 39862280, 63779648, 79724560, 159449120, 318898240]

約数ペア:

[(1, 318898240), (2, 159449120), (4, 79724560), (5, 63779648), (8, 39862280), (10, 31889824), (16, 19931140), (17, 18758720), (20, 15944912), (31, 10287040), (32, 9965570), (34, 9379360), (40, 7972456), (61, 5227840), (62, 5143520), (64, 4982785), (68, 4689680), (80, 3986228), (85, 3751744), (122, 2613920), (124, 2571760), (136, 2344840), (155, 2057408), (160, 1993114), (170, 1875872), (244, 1306960), (248, 1285880), (272, 1172420), (305, 1045568), (310, 1028704), (320, 996557), (340, 937936), (488, 653480), (496, 642940), (527, 605120), (544, 586210), (610, 522784), (620, 514352), (680, 468968), (961, 331840), (976, 326740), (992, 321470), (1037, 307520), (1054, 302560), (1088, 293105), (1220, 261392), (1240, 257176), (1360, 234484), (1891, 168640), (1922, 165920), (1952, 163370), (1984, 160735), (2074, 153760), (2108, 151280), (2440, 130696), (2480, 128588), (2635, 121024), (2720, 117242), (3782, 84320), (3844, 82960), (3904, 81685), (4148, 76880), (4216, 75640), (4805, 66368), (4880, 65348), (4960, 64294), (5185, 61504), (5270, 60512), (5440, 58621), (7564, 42160), (7688, 41480), (8296, 38440), (8432, 37820), (9455, 33728), (9610, 33184), (9760, 32674), (9920, 32147), (10370, 30752), (10540, 30256), (15128, 21080), (15376, 20740), (16337, 19520), (16592, 19220), (16864, 18910)]