20069140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11027}}^1$

素因数の和:11056

約数の個数: 48

約数和(自身を含む): 51875712

約数和(自身を除く): 31806572

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11027, 22054, 44108, 55135, 77189, 110270, 143351, 154378, 220540, 286702, 308756, 385945, 573404, 716755, 771890, 1003457, 1433510, 1543780, 2006914, 2867020, 4013828, 5017285, 10034570, 20069140]

約数ペア:

[(1, 20069140), (2, 10034570), (4, 5017285), (5, 4013828), (7, 2867020), (10, 2006914), (13, 1543780), (14, 1433510), (20, 1003457), (26, 771890), (28, 716755), (35, 573404), (52, 385945), (65, 308756), (70, 286702), (91, 220540), (130, 154378), (140, 143351), (182, 110270), (260, 77189), (364, 55135), (455, 44108), (910, 22054), (1820, 11027)]