20691404800

素因数分解:

$2^{11}\times 5^2\times {\mathrm{11}}^1\times {\mathrm{36739}}^1$

素因数の和:36782

約数の個数: 144

約数和(自身を含む): 55967511600

約数和(自身を除く): 35276106800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 128, 160, 176, 200, 220, 256, 275, 320, 352, 400, 440, 512, 550, 640, 704, 800, 880, 1024, 1100, 1280, 1408, 1600, 1760, 2048, 2200, 2560, 2816, 3200, 3520, 4400, 5120, 5632, 6400, 7040, 8800, 10240, 11264, 12800, 14080, 17600, 22528, 25600, 28160, 35200, 36739, 51200, 56320, 70400, 73478, 112640, 140800, 146956, 183695, 281600, 293912, 367390, 404129, 563200, 587824, 734780, 808258, 918475, 1175648, 1469560, 1616516, 1836950, 2020645, 2351296, 2939120, 3233032, 3673900, 4041290, 4702592, 5878240, 6466064, 7347800, 8082580, 9405184, 10103225, 11756480, 12932128, 14695600, 16165160, 18810368, 20206450, 23512960, 25864256, 29391200, 32330320, 37620736, 40412900, 47025920, 51728512, 58782400, 64660640, 75241472, 80825800, 94051840, 103457024, 117564800, 129321280, 161651600, 188103680, 206914048, 235129600, 258642560, 323303200, 376207360, 413828096, 470259200, 517285120, 646606400, 827656192, 940518400, 1034570240, 1293212800, 1881036800, 2069140480, 2586425600, 4138280960, 5172851200, 10345702400, 20691404800]

約数ペア:

[(1, 20691404800), (2, 10345702400), (4, 5172851200), (5, 4138280960), (8, 2586425600), (10, 2069140480), (11, 1881036800), (16, 1293212800), (20, 1034570240), (22, 940518400), (25, 827656192), (32, 646606400), (40, 517285120), (44, 470259200), (50, 413828096), (55, 376207360), (64, 323303200), (80, 258642560), (88, 235129600), (100, 206914048), (110, 188103680), (128, 161651600), (160, 129321280), (176, 117564800), (200, 103457024), (220, 94051840), (256, 80825800), (275, 75241472), (320, 64660640), (352, 58782400), (400, 51728512), (440, 47025920), (512, 40412900), (550, 37620736), (640, 32330320), (704, 29391200), (800, 25864256), (880, 23512960), (1024, 20206450), (1100, 18810368), (1280, 16165160), (1408, 14695600), (1600, 12932128), (1760, 11756480), (2048, 10103225), (2200, 9405184), (2560, 8082580), (2816, 7347800), (3200, 6466064), (3520, 5878240), (4400, 4702592), (5120, 4041290), (5632, 3673900), (6400, 3233032), (7040, 2939120), (8800, 2351296), (10240, 2020645), (11264, 1836950), (12800, 1616516), (14080, 1469560), (17600, 1175648), (22528, 918475), (25600, 808258), (28160, 734780), (35200, 587824), (36739, 563200), (51200, 404129), (56320, 367390), (70400, 293912), (73478, 281600), (112640, 183695), (140800, 146956)]