278988890

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1\times {\mathrm{617}}^1$

素因数の和:1166

約数の個数: 32

約数和(自身を含む): 509034240

約数和(自身を除く): 230045350

約数列:

[1, 2, 5, 10, 103, 206, 439, 515, 617, 878, 1030, 1234, 2195, 3085, 4390, 6170, 45217, 63551, 90434, 127102, 226085, 270863, 317755, 452170, 541726, 635510, 1354315, 2708630, 27898889, 55797778, 139494445, 278988890]

約数ペア:

[(1, 278988890), (2, 139494445), (5, 55797778), (10, 27898889), (103, 2708630), (206, 1354315), (439, 635510), (515, 541726), (617, 452170), (878, 317755), (1030, 270863), (1234, 226085), (2195, 127102), (3085, 90434), (4390, 63551), (6170, 45217)]