21401600

素因数分解:

$2^{12}\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:64

約数の個数: 156

約数和(自身を含む): 60941040

約数和(自身を除く): 39539440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 32, 38, 40, 44, 50, 55, 64, 76, 80, 88, 95, 100, 110, 128, 152, 160, 176, 190, 200, 209, 220, 256, 275, 304, 320, 352, 380, 400, 418, 440, 475, 512, 550, 608, 640, 704, 760, 800, 836, 880, 950, 1024, 1045, 1100, 1216, 1280, 1408, 1520, 1600, 1672, 1760, 1900, 2048, 2090, 2200, 2432, 2560, 2816, 3040, 3200, 3344, 3520, 3800, 4096, 4180, 4400, 4864, 5120, 5225, 5632, 6080, 6400, 6688, 7040, 7600, 8360, 8800, 9728, 10240, 10450, 11264, 12160, 12800, 13376, 14080, 15200, 16720, 17600, 19456, 20480, 20900, 22528, 24320, 25600, 26752, 28160, 30400, 33440, 35200, 38912, 41800, 45056, 48640, 51200, 53504, 56320, 60800, 66880, 70400, 77824, 83600, 97280, 102400, 107008, 112640, 121600, 133760, 140800, 167200, 194560, 214016, 225280, 243200, 267520, 281600, 334400, 389120, 428032, 486400, 535040, 563200, 668800, 856064, 972800, 1070080, 1126400, 1337600, 1945600, 2140160, 2675200, 4280320, 5350400, 10700800, 21401600]

約数ペア:

[(1, 21401600), (2, 10700800), (4, 5350400), (5, 4280320), (8, 2675200), (10, 2140160), (11, 1945600), (16, 1337600), (19, 1126400), (20, 1070080), (22, 972800), (25, 856064), (32, 668800), (38, 563200), (40, 535040), (44, 486400), (50, 428032), (55, 389120), (64, 334400), (76, 281600), (80, 267520), (88, 243200), (95, 225280), (100, 214016), (110, 194560), (128, 167200), (152, 140800), (160, 133760), (176, 121600), (190, 112640), (200, 107008), (209, 102400), (220, 97280), (256, 83600), (275, 77824), (304, 70400), (320, 66880), (352, 60800), (380, 56320), (400, 53504), (418, 51200), (440, 48640), (475, 45056), (512, 41800), (550, 38912), (608, 35200), (640, 33440), (704, 30400), (760, 28160), (800, 26752), (836, 25600), (880, 24320), (950, 22528), (1024, 20900), (1045, 20480), (1100, 19456), (1216, 17600), (1280, 16720), (1408, 15200), (1520, 14080), (1600, 13376), (1672, 12800), (1760, 12160), (1900, 11264), (2048, 10450), (2090, 10240), (2200, 9728), (2432, 8800), (2560, 8360), (2816, 7600), (3040, 7040), (3200, 6688), (3344, 6400), (3520, 6080), (3800, 5632), (4096, 5225), (4180, 5120), (4400, 4864)]