638389635

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{13043}}^1$

素因数の和:13315

約数の個数: 32

約数和(自身を含む): 1104461568

約数和(自身を除く): 466071933

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 251, 753, 1255, 3263, 3765, 9789, 13043, 16315, 39129, 48945, 65215, 169559, 195645, 508677, 847795, 2543385, 3273793, 9821379, 16368965, 42559309, 49106895, 127677927, 212796545, 638389635]

約数ペア:

[(1, 638389635), (3, 212796545), (5, 127677927), (13, 49106895), (15, 42559309), (39, 16368965), (65, 9821379), (195, 3273793), (251, 2543385), (753, 847795), (1255, 508677), (3263, 195645), (3765, 169559), (9789, 65215), (13043, 48945), (16315, 39129)]