1561665784

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{77249}}^1$

素因数の和:77300

約数の個数: 48

約数和(自身を含む): 3531870000

約数和(自身を除く): 1970204216

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1064, 1444, 2527, 2888, 5054, 10108, 20216, 77249, 154498, 308996, 540743, 617992, 1081486, 1467731, 2162972, 2935462, 4325944, 5870924, 10274117, 11741848, 20548234, 27886889, 41096468, 55773778, 82192936, 111547556, 195208223, 223095112, 390416446, 780832892, 1561665784]

約数ペア:

[(1, 1561665784), (2, 780832892), (4, 390416446), (7, 223095112), (8, 195208223), (14, 111547556), (19, 82192936), (28, 55773778), (38, 41096468), (56, 27886889), (76, 20548234), (133, 11741848), (152, 10274117), (266, 5870924), (361, 4325944), (532, 2935462), (722, 2162972), (1064, 1467731), (1444, 1081486), (2527, 617992), (2888, 540743), (5054, 308996), (10108, 154498), (20216, 77249)]