20098675

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 36

約数和(自身を含む): 28062936

約数和(自身を除く): 7964261

約数列:

[1, 5, 17, 19, 25, 85, 95, 131, 323, 361, 425, 475, 655, 1615, 1805, 2227, 2489, 3275, 6137, 8075, 9025, 11135, 12445, 30685, 42313, 47291, 55675, 62225, 153425, 211565, 236455, 803947, 1057825, 1182275, 4019735, 20098675]

約数ペア:

[(1, 20098675), (5, 4019735), (17, 1182275), (19, 1057825), (25, 803947), (85, 236455), (95, 211565), (131, 153425), (323, 62225), (361, 55675), (425, 47291), (475, 42313), (655, 30685), (1615, 12445), (1805, 11135), (2227, 9025), (2489, 8075), (3275, 6137)]