389410985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1321}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 513993600

約数和(自身を除く): 124582615

約数列:

[1, 5, 19, 29, 95, 107, 145, 535, 551, 1321, 2033, 2755, 3103, 6605, 10165, 15515, 25099, 38309, 58957, 125495, 141347, 191545, 294785, 706735, 727871, 2685593, 3639355, 4099063, 13427965, 20495315, 77882197, 389410985]

約数ペア:

[(1, 389410985), (5, 77882197), (19, 20495315), (29, 13427965), (95, 4099063), (107, 3639355), (145, 2685593), (535, 727871), (551, 706735), (1321, 294785), (2033, 191545), (2755, 141347), (3103, 125495), (6605, 58957), (10165, 38309), (15515, 25099)]