20387148

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 52475472

約数和(自身を除く): 32088324

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 37, 51, 68, 73, 74, 102, 111, 146, 148, 204, 219, 222, 292, 438, 444, 629, 876, 1241, 1258, 1369, 1887, 2482, 2516, 2701, 2738, 3723, 3774, 4107, 4964, 5402, 5476, 7446, 7548, 8103, 8214, 10804, 14892, 16206, 16428, 23273, 32412, 45917, 46546, 69819, 91834, 93092, 99937, 137751, 139638, 183668, 199874, 275502, 279276, 299811, 399748, 551004, 599622, 1199244, 1698929, 3397858, 5096787, 6795716, 10193574, 20387148]

約数ペア:

[(1, 20387148), (2, 10193574), (3, 6795716), (4, 5096787), (6, 3397858), (12, 1698929), (17, 1199244), (34, 599622), (37, 551004), (51, 399748), (68, 299811), (73, 279276), (74, 275502), (102, 199874), (111, 183668), (146, 139638), (148, 137751), (204, 99937), (219, 93092), (222, 91834), (292, 69819), (438, 46546), (444, 45917), (629, 32412), (876, 23273), (1241, 16428), (1258, 16206), (1369, 14892), (1887, 10804), (2482, 8214), (2516, 8103), (2701, 7548), (2738, 7446), (3723, 5476), (3774, 5402), (4107, 4964)]