19385860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74561}}^1$

素因数の和:74583

約数の個数: 24

約数和(自身を含む): 43842456

約数和(自身を除く): 24456596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74561, 149122, 298244, 372805, 745610, 969293, 1491220, 1938586, 3877172, 4846465, 9692930, 19385860]

約数ペア:

[(1, 19385860), (2, 9692930), (4, 4846465), (5, 3877172), (10, 1938586), (13, 1491220), (20, 969293), (26, 745610), (52, 372805), (65, 298244), (130, 149122), (260, 74561)]