641280000

素因数分解:

$2^{11}\times 3^1\times 5^4\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 2149187040

約数和(自身を除く): 1507907040

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, 167, 192, 200, 240, 250, 256, 300, 320, 334, 375, 384, 400, 480, 500, 501, 512, 600, 625, 640, 668, 750, 768, 800, 835, 960, 1000, 1002, 1024, 1200, 1250, 1280, 1336, 1500, 1536, 1600, 1670, 1875, 1920, 2000, 2004, 2048, 2400, 2500, 2505, 2560, 2672, 3000, 3072, 3200, 3340, 3750, 3840, 4000, 4008, 4175, 4800, 5000, 5010, 5120, 5344, 6000, 6144, 6400, 6680, 7500, 7680, 8000, 8016, 8350, 9600, 10000, 10020, 10240, 10688, 12000, 12525, 12800, 13360, 15000, 15360, 16000, 16032, 16700, 19200, 20000, 20040, 20875, 21376, 24000, 25050, 25600, 26720, 30000, 30720, 32000, 32064, 33400, 38400, 40000, 40080, 41750, 42752, 48000, 50100, 51200, 53440, 60000, 62625, 64000, 64128, 66800, 76800, 80000, 80160, 83500, 85504, 96000, 100200, 104375, 106880, 120000, 125250, 128000, 128256, 133600, 153600, 160000, 160320, 167000, 171008, 192000, 200400, 208750, 213760, 240000, 250500, 256000, 256512, 267200, 313125, 320000, 320640, 334000, 342016, 384000, 400800, 417500, 427520, 480000, 501000, 513024, 534400, 626250, 640000, 641280, 668000, 768000, 801600, 835000, 855040, 960000, 1002000, 1026048, 1068800, 1252500, 1280000, 1282560, 1336000, 1603200, 1670000, 1710080, 1920000, 2004000, 2137600, 2505000, 2565120, 2672000, 3206400, 3340000, 3840000, 4008000, 4275200, 5010000, 5130240, 5344000, 6412800, 6680000, 8016000, 8550400, 10020000, 10688000, 12825600, 13360000, 16032000, 20040000, 21376000, 25651200, 26720000, 32064000, 40080000, 42752000, 53440000, 64128000, 80160000, 106880000, 128256000, 160320000, 213760000, 320640000, 641280000]

約数ペア:

[(1, 641280000), (2, 320640000), (3, 213760000), (4, 160320000), (5, 128256000), (6, 106880000), (8, 80160000), (10, 64128000), (12, 53440000), (15, 42752000), (16, 40080000), (20, 32064000), (24, 26720000), (25, 25651200), (30, 21376000), (32, 20040000), (40, 16032000), (48, 13360000), (50, 12825600), (60, 10688000), (64, 10020000), (75, 8550400), (80, 8016000), (96, 6680000), (100, 6412800), (120, 5344000), (125, 5130240), (128, 5010000), (150, 4275200), (160, 4008000), (167, 3840000), (192, 3340000), (200, 3206400), (240, 2672000), (250, 2565120), (256, 2505000), (300, 2137600), (320, 2004000), (334, 1920000), (375, 1710080), (384, 1670000), (400, 1603200), (480, 1336000), (500, 1282560), (501, 1280000), (512, 1252500), (600, 1068800), (625, 1026048), (640, 1002000), (668, 960000), (750, 855040), (768, 835000), (800, 801600), (835, 768000), (960, 668000), (1000, 641280), (1002, 640000), (1024, 626250), (1200, 534400), (1250, 513024), (1280, 501000), (1336, 480000), (1500, 427520), (1536, 417500), (1600, 400800), (1670, 384000), (1875, 342016), (1920, 334000), (2000, 320640), (2004, 320000), (2048, 313125), (2400, 267200), (2500, 256512), (2505, 256000), (2560, 250500), (2672, 240000), (3000, 213760), (3072, 208750), (3200, 200400), (3340, 192000), (3750, 171008), (3840, 167000), (4000, 160320), (4008, 160000), (4175, 153600), (4800, 133600), (5000, 128256), (5010, 128000), (5120, 125250), (5344, 120000), (6000, 106880), (6144, 104375), (6400, 100200), (6680, 96000), (7500, 85504), (7680, 83500), (8000, 80160), (8016, 80000), (8350, 76800), (9600, 66800), (10000, 64128), (10020, 64000), (10240, 62625), (10688, 60000), (12000, 53440), (12525, 51200), (12800, 50100), (13360, 48000), (15000, 42752), (15360, 41750), (16000, 40080), (16032, 40000), (16700, 38400), (19200, 33400), (20000, 32064), (20040, 32000), (20875, 30720), (21376, 30000), (24000, 26720), (25050, 25600)]