18806675

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 36

約数和(自身を含む): 26266920

約数和(自身を除く): 7460245

約数列:

[1, 5, 17, 19, 25, 85, 95, 137, 289, 323, 425, 475, 685, 1445, 1615, 2329, 2603, 3425, 5491, 7225, 8075, 11645, 13015, 27455, 39593, 44251, 58225, 65075, 137275, 197965, 221255, 752267, 989825, 1106275, 3761335, 18806675]

約数ペア:

[(1, 18806675), (5, 3761335), (17, 1106275), (19, 989825), (25, 752267), (85, 221255), (95, 197965), (137, 137275), (289, 65075), (323, 58225), (425, 44251), (475, 39593), (685, 27455), (1445, 13015), (1615, 11645), (2329, 8075), (2603, 7225), (3425, 5491)]