122880000

素因数分解:

$2^{16}\times 3^1\times 5^4$

素因数の和:55

約数の個数: 170

約数和(自身を含む): 409465804

約数和(自身を除く): 286585804

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 256, 300, 320, 375, 384, 400, 480, 500, 512, 600, 625, 640, 750, 768, 800, 960, 1000, 1024, 1200, 1250, 1280, 1500, 1536, 1600, 1875, 1920, 2000, 2048, 2400, 2500, 2560, 3000, 3072, 3200, 3750, 3840, 4000, 4096, 4800, 5000, 5120, 6000, 6144, 6400, 7500, 7680, 8000, 8192, 9600, 10000, 10240, 12000, 12288, 12800, 15000, 15360, 16000, 16384, 19200, 20000, 20480, 24000, 24576, 25600, 30000, 30720, 32000, 32768, 38400, 40000, 40960, 48000, 49152, 51200, 60000, 61440, 64000, 65536, 76800, 80000, 81920, 96000, 98304, 102400, 120000, 122880, 128000, 153600, 160000, 163840, 192000, 196608, 204800, 240000, 245760, 256000, 307200, 320000, 327680, 384000, 409600, 480000, 491520, 512000, 614400, 640000, 768000, 819200, 960000, 983040, 1024000, 1228800, 1280000, 1536000, 1638400, 1920000, 2048000, 2457600, 2560000, 3072000, 3840000, 4096000, 4915200, 5120000, 6144000, 7680000, 8192000, 10240000, 12288000, 15360000, 20480000, 24576000, 30720000, 40960000, 61440000, 122880000]

約数ペア:

[(1, 122880000), (2, 61440000), (3, 40960000), (4, 30720000), (5, 24576000), (6, 20480000), (8, 15360000), (10, 12288000), (12, 10240000), (15, 8192000), (16, 7680000), (20, 6144000), (24, 5120000), (25, 4915200), (30, 4096000), (32, 3840000), (40, 3072000), (48, 2560000), (50, 2457600), (60, 2048000), (64, 1920000), (75, 1638400), (80, 1536000), (96, 1280000), (100, 1228800), (120, 1024000), (125, 983040), (128, 960000), (150, 819200), (160, 768000), (192, 640000), (200, 614400), (240, 512000), (250, 491520), (256, 480000), (300, 409600), (320, 384000), (375, 327680), (384, 320000), (400, 307200), (480, 256000), (500, 245760), (512, 240000), (600, 204800), (625, 196608), (640, 192000), (750, 163840), (768, 160000), (800, 153600), (960, 128000), (1000, 122880), (1024, 120000), (1200, 102400), (1250, 98304), (1280, 96000), (1500, 81920), (1536, 80000), (1600, 76800), (1875, 65536), (1920, 64000), (2000, 61440), (2048, 60000), (2400, 51200), (2500, 49152), (2560, 48000), (3000, 40960), (3072, 40000), (3200, 38400), (3750, 32768), (3840, 32000), (4000, 30720), (4096, 30000), (4800, 25600), (5000, 24576), (5120, 24000), (6000, 20480), (6144, 20000), (6400, 19200), (7500, 16384), (7680, 16000), (8000, 15360), (8192, 15000), (9600, 12800), (10000, 12288), (10240, 12000)]