31991160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 102228480

約数和(自身を除く): 70237320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 67, 69, 92, 115, 120, 134, 138, 173, 184, 201, 230, 268, 276, 335, 345, 346, 402, 460, 519, 536, 552, 670, 690, 692, 804, 865, 920, 1005, 1038, 1340, 1380, 1384, 1541, 1608, 1730, 2010, 2076, 2595, 2680, 2760, 3082, 3460, 3979, 4020, 4152, 4623, 5190, 6164, 6920, 7705, 7958, 8040, 9246, 10380, 11591, 11937, 12328, 15410, 15916, 18492, 19895, 20760, 23115, 23182, 23874, 30820, 31832, 34773, 36984, 39790, 46230, 46364, 47748, 57955, 59685, 61640, 69546, 79580, 92460, 92728, 95496, 115910, 119370, 139092, 159160, 173865, 184920, 231820, 238740, 266593, 278184, 347730, 463640, 477480, 533186, 695460, 799779, 1066372, 1332965, 1390920, 1599558, 2132744, 2665930, 3199116, 3998895, 5331860, 6398232, 7997790, 10663720, 15995580, 31991160]

約数ペア:

[(1, 31991160), (2, 15995580), (3, 10663720), (4, 7997790), (5, 6398232), (6, 5331860), (8, 3998895), (10, 3199116), (12, 2665930), (15, 2132744), (20, 1599558), (23, 1390920), (24, 1332965), (30, 1066372), (40, 799779), (46, 695460), (60, 533186), (67, 477480), (69, 463640), (92, 347730), (115, 278184), (120, 266593), (134, 238740), (138, 231820), (173, 184920), (184, 173865), (201, 159160), (230, 139092), (268, 119370), (276, 115910), (335, 95496), (345, 92728), (346, 92460), (402, 79580), (460, 69546), (519, 61640), (536, 59685), (552, 57955), (670, 47748), (690, 46364), (692, 46230), (804, 39790), (865, 36984), (920, 34773), (1005, 31832), (1038, 30820), (1340, 23874), (1380, 23182), (1384, 23115), (1541, 20760), (1608, 19895), (1730, 18492), (2010, 15916), (2076, 15410), (2595, 12328), (2680, 11937), (2760, 11591), (3082, 10380), (3460, 9246), (3979, 8040), (4020, 7958), (4152, 7705), (4623, 6920), (5190, 6164)]