19788725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{317}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 26971488

約数和(自身を除く): 7182763

約数列:

[1, 5, 11, 25, 55, 227, 275, 317, 1135, 1585, 2497, 3487, 5675, 7925, 12485, 17435, 62425, 71959, 87175, 359795, 791549, 1798975, 3957745, 19788725]

約数ペア:

[(1, 19788725), (5, 3957745), (11, 1798975), (25, 791549), (55, 359795), (227, 87175), (275, 71959), (317, 62425), (1135, 17435), (1585, 12485), (2497, 7925), (3487, 5675)]