258565966

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:624

約数の個数: 32

約数和(自身を含む): 407721600

約数和(自身を除く): 149155634

約数列:

[1, 2, 43, 59, 86, 118, 131, 262, 389, 778, 2537, 5074, 5633, 7729, 11266, 15458, 16727, 22951, 33454, 45902, 50959, 101918, 332347, 664694, 986893, 1973786, 2191237, 3006581, 4382474, 6013162, 129282983, 258565966]

約数ペア:

[(1, 258565966), (2, 129282983), (43, 6013162), (59, 4382474), (86, 3006581), (118, 2191237), (131, 1973786), (262, 986893), (389, 664694), (778, 332347), (2537, 101918), (5074, 50959), (5633, 45902), (7729, 33454), (11266, 22951), (15458, 16727)]