20446712

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 45934560

約数和(自身を除く): 25487848

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 61, 88, 104, 122, 143, 244, 286, 293, 488, 572, 586, 671, 793, 1144, 1172, 1342, 1586, 2344, 2684, 3172, 3223, 3809, 5368, 6344, 6446, 7618, 8723, 12892, 15236, 17446, 17873, 25784, 30472, 34892, 35746, 41899, 69784, 71492, 83798, 142984, 167596, 196603, 232349, 335192, 393206, 464698, 786412, 929396, 1572824, 1858792, 2555839, 5111678, 10223356, 20446712]

約数ペア:

[(1, 20446712), (2, 10223356), (4, 5111678), (8, 2555839), (11, 1858792), (13, 1572824), (22, 929396), (26, 786412), (44, 464698), (52, 393206), (61, 335192), (88, 232349), (104, 196603), (122, 167596), (143, 142984), (244, 83798), (286, 71492), (293, 69784), (488, 41899), (572, 35746), (586, 34892), (671, 30472), (793, 25784), (1144, 17873), (1172, 17446), (1342, 15236), (1586, 12892), (2344, 8723), (2684, 7618), (3172, 6446), (3223, 6344), (3809, 5368)]