20492030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{557}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 39934944

約数和(自身を除く): 19442914

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 283, 557, 566, 1114, 1415, 2785, 2830, 3679, 5570, 7241, 7358, 14482, 18395, 36205, 36790, 72410, 157631, 315262, 788155, 1576310, 2049203, 4098406, 10246015, 20492030]

約数ペア:

[(1, 20492030), (2, 10246015), (5, 4098406), (10, 2049203), (13, 1576310), (26, 788155), (65, 315262), (130, 157631), (283, 72410), (557, 36790), (566, 36205), (1114, 18395), (1415, 14482), (2785, 7358), (2830, 7241), (3679, 5570)]