19956230

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 22273930

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 139, 245, 278, 293, 490, 586, 695, 973, 1390, 1465, 1946, 2051, 2930, 4102, 4865, 6811, 9730, 10255, 13622, 14357, 20510, 28714, 34055, 40727, 68110, 71785, 81454, 143570, 203635, 285089, 407270, 570178, 1425445, 1995623, 2850890, 3991246, 9978115, 19956230]

約数ペア:

[(1, 19956230), (2, 9978115), (5, 3991246), (7, 2850890), (10, 1995623), (14, 1425445), (35, 570178), (49, 407270), (70, 285089), (98, 203635), (139, 143570), (245, 81454), (278, 71785), (293, 68110), (490, 40727), (586, 34055), (695, 28714), (973, 20510), (1390, 14357), (1465, 13622), (1946, 10255), (2051, 9730), (2930, 6811), (4102, 4865)]