2021018675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{653}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 2758885920

約数和(自身を除く): 737867245

約数列:

[1, 5, 13, 25, 65, 89, 107, 325, 445, 535, 653, 1157, 1391, 2225, 2675, 3265, 5785, 6955, 8489, 9523, 16325, 28925, 34775, 42445, 47615, 58117, 69871, 123799, 212225, 238075, 290585, 349355, 618995, 755521, 908323, 1452925, 1746775, 3094975, 3777605, 4541615, 6218519, 18888025, 22708075, 31092595, 80840747, 155462975, 404203735, 2021018675]

約数ペア:

[(1, 2021018675), (5, 404203735), (13, 155462975), (25, 80840747), (65, 31092595), (89, 22708075), (107, 18888025), (325, 6218519), (445, 4541615), (535, 3777605), (653, 3094975), (1157, 1746775), (1391, 1452925), (2225, 908323), (2675, 755521), (3265, 618995), (5785, 349355), (6955, 290585), (8489, 238075), (9523, 212225), (16325, 123799), (28925, 69871), (34775, 58117), (42445, 47615)]