1245184000

素因数分解:

$2^{19}\times 5^3\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 160

約数和(自身を含む): 3271554000

約数和(自身を除く): 2026370000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 125, 128, 152, 160, 190, 200, 250, 256, 304, 320, 380, 400, 475, 500, 512, 608, 640, 760, 800, 950, 1000, 1024, 1216, 1280, 1520, 1600, 1900, 2000, 2048, 2375, 2432, 2560, 3040, 3200, 3800, 4000, 4096, 4750, 4864, 5120, 6080, 6400, 7600, 8000, 8192, 9500, 9728, 10240, 12160, 12800, 15200, 16000, 16384, 19000, 19456, 20480, 24320, 25600, 30400, 32000, 32768, 38000, 38912, 40960, 48640, 51200, 60800, 64000, 65536, 76000, 77824, 81920, 97280, 102400, 121600, 128000, 131072, 152000, 155648, 163840, 194560, 204800, 243200, 256000, 262144, 304000, 311296, 327680, 389120, 409600, 486400, 512000, 524288, 608000, 622592, 655360, 778240, 819200, 972800, 1024000, 1216000, 1245184, 1310720, 1556480, 1638400, 1945600, 2048000, 2432000, 2490368, 2621440, 3112960, 3276800, 3891200, 4096000, 4864000, 4980736, 6225920, 6553600, 7782400, 8192000, 9728000, 9961472, 12451840, 13107200, 15564800, 16384000, 19456000, 24903680, 31129600, 32768000, 38912000, 49807360, 62259200, 65536000, 77824000, 124518400, 155648000, 249036800, 311296000, 622592000, 1245184000]

約数ペア:

[(1, 1245184000), (2, 622592000), (4, 311296000), (5, 249036800), (8, 155648000), (10, 124518400), (16, 77824000), (19, 65536000), (20, 62259200), (25, 49807360), (32, 38912000), (38, 32768000), (40, 31129600), (50, 24903680), (64, 19456000), (76, 16384000), (80, 15564800), (95, 13107200), (100, 12451840), (125, 9961472), (128, 9728000), (152, 8192000), (160, 7782400), (190, 6553600), (200, 6225920), (250, 4980736), (256, 4864000), (304, 4096000), (320, 3891200), (380, 3276800), (400, 3112960), (475, 2621440), (500, 2490368), (512, 2432000), (608, 2048000), (640, 1945600), (760, 1638400), (800, 1556480), (950, 1310720), (1000, 1245184), (1024, 1216000), (1216, 1024000), (1280, 972800), (1520, 819200), (1600, 778240), (1900, 655360), (2000, 622592), (2048, 608000), (2375, 524288), (2432, 512000), (2560, 486400), (3040, 409600), (3200, 389120), (3800, 327680), (4000, 311296), (4096, 304000), (4750, 262144), (4864, 256000), (5120, 243200), (6080, 204800), (6400, 194560), (7600, 163840), (8000, 155648), (8192, 152000), (9500, 131072), (9728, 128000), (10240, 121600), (12160, 102400), (12800, 97280), (15200, 81920), (16000, 77824), (16384, 76000), (19000, 65536), (19456, 64000), (20480, 60800), (24320, 51200), (25600, 48640), (30400, 40960), (32000, 38912), (32768, 38000)]