19824640

素因数分解:

$2^{15}\times 5^1\times {\mathrm{11}}^2$

素因数の和:57

約数の個数: 96

約数和(自身を含む): 52296930

約数和(自身を除く): 32472290

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 256, 320, 352, 440, 484, 512, 605, 640, 704, 880, 968, 1024, 1210, 1280, 1408, 1760, 1936, 2048, 2420, 2560, 2816, 3520, 3872, 4096, 4840, 5120, 5632, 7040, 7744, 8192, 9680, 10240, 11264, 14080, 15488, 16384, 19360, 20480, 22528, 28160, 30976, 32768, 38720, 40960, 45056, 56320, 61952, 77440, 81920, 90112, 112640, 123904, 154880, 163840, 180224, 225280, 247808, 309760, 360448, 450560, 495616, 619520, 901120, 991232, 1239040, 1802240, 1982464, 2478080, 3964928, 4956160, 9912320, 19824640]

約数ペア:

[(1, 19824640), (2, 9912320), (4, 4956160), (5, 3964928), (8, 2478080), (10, 1982464), (11, 1802240), (16, 1239040), (20, 991232), (22, 901120), (32, 619520), (40, 495616), (44, 450560), (55, 360448), (64, 309760), (80, 247808), (88, 225280), (110, 180224), (121, 163840), (128, 154880), (160, 123904), (176, 112640), (220, 90112), (242, 81920), (256, 77440), (320, 61952), (352, 56320), (440, 45056), (484, 40960), (512, 38720), (605, 32768), (640, 30976), (704, 28160), (880, 22528), (968, 20480), (1024, 19360), (1210, 16384), (1280, 15488), (1408, 14080), (1760, 11264), (1936, 10240), (2048, 9680), (2420, 8192), (2560, 7744), (2816, 7040), (3520, 5632), (3872, 5120), (4096, 4840)]