20628175

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 27061760

約数和(自身を除く): 6433585

約数列:

[1, 5, 25, 31, 43, 155, 215, 619, 775, 1075, 1333, 3095, 6665, 15475, 19189, 26617, 33325, 95945, 133085, 479725, 665425, 825127, 4125635, 20628175]

約数ペア:

[(1, 20628175), (5, 4125635), (25, 825127), (31, 665425), (43, 479725), (155, 133085), (215, 95945), (619, 33325), (775, 26617), (1075, 19189), (1333, 15475), (3095, 6665)]