201995575

素因数分解:

$5^2\times {\mathrm{149}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 254336400

約数和(自身を除く): 52340825

約数列:

[1, 5, 25, 149, 211, 257, 745, 1055, 1285, 3725, 5275, 6425, 31439, 38293, 54227, 157195, 191465, 271135, 785975, 957325, 1355675, 8079823, 40399115, 201995575]

約数ペア:

[(1, 201995575), (5, 40399115), (25, 8079823), (149, 1355675), (211, 957325), (257, 785975), (745, 271135), (1055, 191465), (1285, 157195), (3725, 54227), (5275, 38293), (6425, 31439)]