205123468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1873}}^1$

素因数の和:2038

約数の個数: 48

約数和(自身を含む): 415578240

約数和(自身を除く): 210454772

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 131, 209, 262, 418, 524, 836, 1441, 1873, 2489, 2882, 3746, 4978, 5764, 7492, 9956, 20603, 27379, 35587, 41206, 54758, 71174, 82412, 109516, 142348, 245363, 391457, 490726, 782914, 981452, 1565828, 2698993, 4661897, 5397986, 9323794, 10795972, 18647588, 51280867, 102561734, 205123468]

約数ペア:

[(1, 205123468), (2, 102561734), (4, 51280867), (11, 18647588), (19, 10795972), (22, 9323794), (38, 5397986), (44, 4661897), (76, 2698993), (131, 1565828), (209, 981452), (262, 782914), (418, 490726), (524, 391457), (836, 245363), (1441, 142348), (1873, 109516), (2489, 82412), (2882, 71174), (3746, 54758), (4978, 41206), (5764, 35587), (7492, 27379), (9956, 20603)]