20797408

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 43076880

約数和(自身を除く): 22279472

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 73, 116, 146, 232, 292, 307, 464, 584, 614, 928, 1168, 1228, 2117, 2336, 2456, 4234, 4912, 8468, 8903, 9824, 16936, 17806, 22411, 33872, 35612, 44822, 67744, 71224, 89644, 142448, 179288, 284896, 358576, 649919, 717152, 1299838, 2599676, 5199352, 10398704, 20797408]

約数ペア:

[(1, 20797408), (2, 10398704), (4, 5199352), (8, 2599676), (16, 1299838), (29, 717152), (32, 649919), (58, 358576), (73, 284896), (116, 179288), (146, 142448), (232, 89644), (292, 71224), (307, 67744), (464, 44822), (584, 35612), (614, 33872), (928, 22411), (1168, 17806), (1228, 16936), (2117, 9824), (2336, 8903), (2456, 8468), (4234, 4912)]