1990714748

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{67427}}^1$

素因数の和:67514

約数の個数: 36

約数和(自身を含む): 3892079016

約数和(自身を除く): 1901364268

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 1342, 2684, 7381, 14762, 29524, 67427, 134854, 269708, 741697, 1483394, 2966788, 4113047, 8158667, 8226094, 16317334, 16452188, 32634668, 45243517, 90487034, 180974068, 497678687, 995357374, 1990714748]

約数ペア:

[(1, 1990714748), (2, 995357374), (4, 497678687), (11, 180974068), (22, 90487034), (44, 45243517), (61, 32634668), (121, 16452188), (122, 16317334), (242, 8226094), (244, 8158667), (484, 4113047), (671, 2966788), (1342, 1483394), (2684, 741697), (7381, 269708), (14762, 134854), (29524, 67427)]