20181648

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{22129}}^1$

素因数の和:22159

約数の個数: 40

約数和(自身を含む): 54882400

約数和(自身を除く): 34700752

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 22129, 44258, 66387, 88516, 132774, 177032, 265548, 354064, 420451, 531096, 840902, 1062192, 1261353, 1681804, 2522706, 3363608, 5045412, 6727216, 10090824, 20181648]

約数ペア:

[(1, 20181648), (2, 10090824), (3, 6727216), (4, 5045412), (6, 3363608), (8, 2522706), (12, 1681804), (16, 1261353), (19, 1062192), (24, 840902), (38, 531096), (48, 420451), (57, 354064), (76, 265548), (114, 177032), (152, 132774), (228, 88516), (304, 66387), (456, 44258), (912, 22129)]