539320990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{21059}}^1$

素因数の和:21276

約数の個数: 32

約数和(自身を含む): 1050809760

約数和(自身を除く): 511488770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1970, 2561, 5122, 12805, 21059, 25610, 42118, 105295, 210590, 273767, 547534, 1368835, 2737670, 4148623, 8297246, 20743115, 41486230, 53932099, 107864198, 269660495, 539320990]

約数ペア:

[(1, 539320990), (2, 269660495), (5, 107864198), (10, 53932099), (13, 41486230), (26, 20743115), (65, 8297246), (130, 4148623), (197, 2737670), (394, 1368835), (985, 547534), (1970, 273767), (2561, 210590), (5122, 105295), (12805, 42118), (21059, 25610)]