12872405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1533

約数の個数: 32

約数和(自身を含む): 20025600

約数和(自身を除く): 7153195

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1489, 1729, 7445, 8645, 10423, 19357, 28291, 52115, 96785, 135499, 141455, 198037, 367783, 677495, 990185, 1838915, 2574481, 12872405]

約数ペア:

[(1, 12872405), (5, 2574481), (7, 1838915), (13, 990185), (19, 677495), (35, 367783), (65, 198037), (91, 141455), (95, 135499), (133, 96785), (247, 52115), (455, 28291), (665, 19357), (1235, 10423), (1489, 8645), (1729, 7445)]