18887137088

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{1609}}^1\times {\mathrm{10789}}^1$

素因数の和:12427

約数の個数: 56

約数和(自身を含む): 39712163400

約数和(自身を除く): 20825026312

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 1609, 3218, 6436, 10789, 12872, 21578, 25744, 27353, 43156, 51488, 54706, 86312, 102976, 109412, 172624, 183413, 218824, 345248, 366826, 437648, 690496, 733652, 875296, 1467304, 1750592, 2934608, 5869216, 11738432, 17359501, 34719002, 69438004, 138876008, 277752016, 295111517, 555504032, 590223034, 1111008064, 1180446068, 2360892136, 4721784272, 9443568544, 18887137088]

約数ペア:

[(1, 18887137088), (2, 9443568544), (4, 4721784272), (8, 2360892136), (16, 1180446068), (17, 1111008064), (32, 590223034), (34, 555504032), (64, 295111517), (68, 277752016), (136, 138876008), (272, 69438004), (544, 34719002), (1088, 17359501), (1609, 11738432), (3218, 5869216), (6436, 2934608), (10789, 1750592), (12872, 1467304), (21578, 875296), (25744, 733652), (27353, 690496), (43156, 437648), (51488, 366826), (54706, 345248), (86312, 218824), (102976, 183413), (109412, 172624)]