19940116

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 42650496

約数和(自身を除く): 22710380

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 163, 238, 257, 326, 476, 514, 652, 1028, 1141, 1799, 2282, 2771, 3598, 4369, 4564, 5542, 7196, 8738, 11084, 17476, 19397, 30583, 38794, 41891, 61166, 77588, 83782, 122332, 167564, 293237, 586474, 712147, 1172948, 1424294, 2848588, 4985029, 9970058, 19940116]

約数ペア:

[(1, 19940116), (2, 9970058), (4, 4985029), (7, 2848588), (14, 1424294), (17, 1172948), (28, 712147), (34, 586474), (68, 293237), (119, 167564), (163, 122332), (238, 83782), (257, 77588), (326, 61166), (476, 41891), (514, 38794), (652, 30583), (1028, 19397), (1141, 17476), (1799, 11084), (2282, 8738), (2771, 7196), (3598, 5542), (4369, 4564)]