20121674456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{340031}}^1$

素因数の和:340619

約数の個数: 32

約数和(自身を含む): 40701830400

約数和(自身を除く): 20580155944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 569, 1138, 2276, 4552, 7397, 14794, 29588, 59176, 340031, 680062, 1360124, 2720248, 4420403, 8840806, 17681612, 35363224, 193477639, 386955278, 773910556, 1547821112, 2515209307, 5030418614, 10060837228, 20121674456]

約数ペア:

[(1, 20121674456), (2, 10060837228), (4, 5030418614), (8, 2515209307), (13, 1547821112), (26, 773910556), (52, 386955278), (104, 193477639), (569, 35363224), (1138, 17681612), (2276, 8840806), (4552, 4420403), (7397, 2720248), (14794, 1360124), (29588, 680062), (59176, 340031)]