20512060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{523}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 45160416

約数和(自身を除く): 24648356

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 523, 530, 740, 1046, 1060, 1961, 2092, 2615, 3922, 5230, 7844, 9805, 10460, 19351, 19610, 27719, 38702, 39220, 55438, 77404, 96755, 110876, 138595, 193510, 277190, 387020, 554380, 1025603, 2051206, 4102412, 5128015, 10256030, 20512060]

約数ペア:

[(1, 20512060), (2, 10256030), (4, 5128015), (5, 4102412), (10, 2051206), (20, 1025603), (37, 554380), (53, 387020), (74, 277190), (106, 193510), (148, 138595), (185, 110876), (212, 96755), (265, 77404), (370, 55438), (523, 39220), (530, 38702), (740, 27719), (1046, 19610), (1060, 19351), (1961, 10460), (2092, 9805), (2615, 7844), (3922, 5230)]