55120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:79

約数の個数: 40

約数和(自身を含む): 140616

約数和(自身を除く): 85496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1378, 2120, 2756, 3445, 4240, 5512, 6890, 11024, 13780, 27560, 55120]

約数ペア:

[(1, 55120), (2, 27560), (4, 13780), (5, 11024), (8, 6890), (10, 5512), (13, 4240), (16, 3445), (20, 2756), (26, 2120), (40, 1378), (52, 1060), (53, 1040), (65, 848), (80, 689), (104, 530), (106, 520), (130, 424), (208, 265), (212, 260)]