648939520

素因数分解:

$2^{11}\times 5^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:653

約数の個数: 96

約数和(自身を含む): 1572480000

約数和(自身を除く): 923540480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 499, 508, 512, 635, 640, 998, 1016, 1024, 1270, 1280, 1996, 2032, 2048, 2495, 2540, 2560, 3992, 4064, 4990, 5080, 5120, 7984, 8128, 9980, 10160, 10240, 15968, 16256, 19960, 20320, 31936, 32512, 39920, 40640, 63373, 63872, 65024, 79840, 81280, 126746, 127744, 130048, 159680, 162560, 253492, 255488, 260096, 316865, 319360, 325120, 506984, 510976, 633730, 638720, 650240, 1013968, 1021952, 1267460, 1277440, 1300480, 2027936, 2534920, 2554880, 4055872, 5069840, 5109760, 8111744, 10139680, 16223488, 20279360, 32446976, 40558720, 64893952, 81117440, 129787904, 162234880, 324469760, 648939520]

約数ペア:

[(1, 648939520), (2, 324469760), (4, 162234880), (5, 129787904), (8, 81117440), (10, 64893952), (16, 40558720), (20, 32446976), (32, 20279360), (40, 16223488), (64, 10139680), (80, 8111744), (127, 5109760), (128, 5069840), (160, 4055872), (254, 2554880), (256, 2534920), (320, 2027936), (499, 1300480), (508, 1277440), (512, 1267460), (635, 1021952), (640, 1013968), (998, 650240), (1016, 638720), (1024, 633730), (1270, 510976), (1280, 506984), (1996, 325120), (2032, 319360), (2048, 316865), (2495, 260096), (2540, 255488), (2560, 253492), (3992, 162560), (4064, 159680), (4990, 130048), (5080, 127744), (5120, 126746), (7984, 81280), (8128, 79840), (9980, 65024), (10160, 63872), (10240, 63373), (15968, 40640), (16256, 39920), (19960, 32512), (20320, 31936)]