19616528

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:735

約数の個数: 40

約数和(自身を含む): 39967680

約数和(自身を除く): 20351152

約数列:

[1, 2, 4, 8, 16, 29, 58, 67, 116, 134, 232, 268, 464, 536, 631, 1072, 1262, 1943, 2524, 3886, 5048, 7772, 10096, 15544, 18299, 31088, 36598, 42277, 73196, 84554, 146392, 169108, 292784, 338216, 676432, 1226033, 2452066, 4904132, 9808264, 19616528]

約数ペア:

[(1, 19616528), (2, 9808264), (4, 4904132), (8, 2452066), (16, 1226033), (29, 676432), (58, 338216), (67, 292784), (116, 169108), (134, 146392), (232, 84554), (268, 73196), (464, 42277), (536, 36598), (631, 31088), (1072, 18299), (1262, 15544), (1943, 10096), (2524, 7772), (3886, 5048)]